<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2025 Workiva-->
<!--r:c39d0b6c-43a9-4900-8d5f-c2573f656547,g:60b1702f-90f5-4e23-9295-618d8a0c2d7d-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.pentair.com/role/CondensedConsolidatedStatementsofOperationsandComprehensiveIncomeLoss" xlink:type="simple" xlink:href="pnr-20250630.xsd#CondensedConsolidatedStatementsofOperationsandComprehensiveIncomeLoss"/>
  <link:calculationLink xlink:role="http://www.pentair.com/role/CondensedConsolidatedStatementsofOperationsandComprehensiveIncomeLoss" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_740f5c21-ed9a-4e12-8edc-39c494a30498" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GrossProfit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_7bd21d12-27a6-446f-aa2d-daed016205c9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_740f5c21-ed9a-4e12-8edc-39c494a30498" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_7bd21d12-27a6-446f-aa2d-daed016205c9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_5037c6cd-d60a-4ad1-93df-70e5fea28cc6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_740f5c21-ed9a-4e12-8edc-39c494a30498" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_5037c6cd-d60a-4ad1-93df-70e5fea28cc6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_a6684e6a-57ac-4957-a556-f650a5ae249a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_1da27901-2952-4ff6-91b1-188d91291ff5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_a6684e6a-57ac-4957-a556-f650a5ae249a" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_1da27901-2952-4ff6-91b1-188d91291ff5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_4b131473-75cc-4739-bb89-a65ed0cc3a6c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_a6684e6a-57ac-4957-a556-f650a5ae249a" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_4b131473-75cc-4739-bb89-a65ed0cc3a6c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_fb7678c7-ac36-477e-a739-b669e35eb091" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_a6684e6a-57ac-4957-a556-f650a5ae249a" xlink:to="loc_us-gaap_OperatingIncomeLoss_fb7678c7-ac36-477e-a739-b669e35eb091" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfBusiness_8cfe4f03-702e-4caa-9a0e-56c796c3579d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainLossOnSaleOfBusiness"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_a6684e6a-57ac-4957-a556-f650a5ae249a" xlink:to="loc_us-gaap_GainLossOnSaleOfBusiness_8cfe4f03-702e-4caa-9a0e-56c796c3579d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_2a3a8ba1-ed1c-4a51-ad92-24701a4993d5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_98e67355-1a85-4f5e-8e6c-3671b71d08c2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_2a3a8ba1-ed1c-4a51-ad92-24701a4993d5" xlink:to="loc_us-gaap_ProfitLoss_98e67355-1a85-4f5e-8e6c-3671b71d08c2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax_0266244c-5978-4556-bc80-972ef8f1487f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_2a3a8ba1-ed1c-4a51-ad92-24701a4993d5" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax_0266244c-5978-4556-bc80-972ef8f1487f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent_2474406d-d88a-4a74-8db6-543e1a173ca2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_2a3a8ba1-ed1c-4a51-ad92-24701a4993d5" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent_2474406d-d88a-4a74-8db6-543e1a173ca2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_59853798-28b1-4bf2-95e2-f1f25f01d16e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_6494a546-fe51-46bb-a46a-1e9ec8f16926" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_59853798-28b1-4bf2-95e2-f1f25f01d16e" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_6494a546-fe51-46bb-a46a-1e9ec8f16926" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_447252e2-791c-4cba-9efc-97528d638d16" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_59853798-28b1-4bf2-95e2-f1f25f01d16e" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_447252e2-791c-4cba-9efc-97528d638d16" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_f2cb10d6-2836-4681-8b68-2051950b3e80" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_c1a01c8f-11c4-440a-a988-0e1bdd9ad627" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsPerBasicShare"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EarningsPerShareBasic_f2cb10d6-2836-4681-8b68-2051950b3e80" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_c1a01c8f-11c4-440a-a988-0e1bdd9ad627" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_44010954-a2e6-4d31-923e-66bab5822dad" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EarningsPerShareBasic_f2cb10d6-2836-4681-8b68-2051950b3e80" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_44010954-a2e6-4d31-923e-66bab5822dad" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_520b3a1d-a0b7-466f-a87e-2ed4741c5262" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_382ce997-0fa6-416c-9b73-a444d0c3097e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_520b3a1d-a0b7-466f-a87e-2ed4741c5262" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_382ce997-0fa6-416c-9b73-a444d0c3097e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax_6e03f08a-408f-4550-b64d-24f364afa98f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_520b3a1d-a0b7-466f-a87e-2ed4741c5262" xlink:to="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax_6e03f08a-408f-4550-b64d-24f364afa98f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_f10734ad-40c6-416a-a9cf-b10dc7104bdd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_0777c176-71ab-489c-9e00-496b0ec6b4ac" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EarningsPerShareDiluted_f10734ad-40c6-416a-a9cf-b10dc7104bdd" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_0777c176-71ab-489c-9e00-496b0ec6b4ac" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_f39d4042-7a3c-4712-92f3-e364d6135ee4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EarningsPerShareDiluted_f10734ad-40c6-416a-a9cf-b10dc7104bdd" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_f39d4042-7a3c-4712-92f3-e364d6135ee4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_902c8cb0-5a50-4f63-8d7f-03736af8cc1b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_e48e2deb-53b8-4116-aa98-8a6f3533354e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GrossProfit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_902c8cb0-5a50-4f63-8d7f-03736af8cc1b" xlink:to="loc_us-gaap_GrossProfit_e48e2deb-53b8-4116-aa98-8a6f3533354e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_82062f20-163e-4c93-9e87-5d9bc3702370" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_902c8cb0-5a50-4f63-8d7f-03736af8cc1b" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_82062f20-163e-4c93-9e87-5d9bc3702370" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_23b31e7b-5881-44b9-8bc1-88654cd0c994" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_902c8cb0-5a50-4f63-8d7f-03736af8cc1b" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_23b31e7b-5881-44b9-8bc1-88654cd0c994" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pentair.com/role/CondensedConsolidatedBalanceSheets" xlink:type="simple" xlink:href="pnr-20250630.xsd#CondensedConsolidatedBalanceSheets"/>
  <link:calculationLink xlink:role="http://www.pentair.com/role/CondensedConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_4f6cf8c5-c317-475e-8d5b-06201d85cc73" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_73980fe6-38f6-4354-9472-635f8ea724b5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_4f6cf8c5-c317-475e-8d5b-06201d85cc73" xlink:to="loc_us-gaap_AssetsCurrent_73980fe6-38f6-4354-9472-635f8ea724b5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_44bf2fc6-560e-4e48-a4ee-1a85284ac9c3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_4f6cf8c5-c317-475e-8d5b-06201d85cc73" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_44bf2fc6-560e-4e48-a4ee-1a85284ac9c3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_45f7a4f4-8b1f-40d1-8b24-d22477462992" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_4f6cf8c5-c317-475e-8d5b-06201d85cc73" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_45f7a4f4-8b1f-40d1-8b24-d22477462992" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_9c90ead7-10ae-4c7a-8f67-256210597405" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_2b1b4463-b10a-41d9-9479-78fca77acf9b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_9c90ead7-10ae-4c7a-8f67-256210597405" xlink:to="loc_us-gaap_LiabilitiesCurrent_2b1b4463-b10a-41d9-9479-78fca77acf9b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_c67d8c37-8148-4975-9fa3-36625870dc65" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_9c90ead7-10ae-4c7a-8f67-256210597405" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_c67d8c37-8148-4975-9fa3-36625870dc65" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_173a9af2-18b0-4284-8849-74b62c0ba540" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_9c90ead7-10ae-4c7a-8f67-256210597405" xlink:to="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_173a9af2-18b0-4284-8849-74b62c0ba540" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_d848f738-0c10-49ba-9784-ae6efe61973a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_9c90ead7-10ae-4c7a-8f67-256210597405" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_d848f738-0c10-49ba-9784-ae6efe61973a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_5df3e868-4bc6-4c0b-9173-cf7fe3a57df3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_9c90ead7-10ae-4c7a-8f67-256210597405" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_5df3e868-4bc6-4c0b-9173-cf7fe3a57df3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_769b0cae-1884-4219-ab29-72ac9d07a659" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_996ac9d2-92d1-4e40-9953-0248998c141c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_769b0cae-1884-4219-ab29-72ac9d07a659" xlink:to="loc_us-gaap_Liabilities_996ac9d2-92d1-4e40-9953-0248998c141c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_ec08f7c4-cbf3-4f90-a2d8-3c5de2ef0235" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_769b0cae-1884-4219-ab29-72ac9d07a659" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_ec08f7c4-cbf3-4f90-a2d8-3c5de2ef0235" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_b79efce3-5da1-4204-a140-bca5e48dc39c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_d9029052-4b18-48b9-a7a7-b73ec733d84c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_b79efce3-5da1-4204-a140-bca5e48dc39c" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_d9029052-4b18-48b9-a7a7-b73ec733d84c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsAndNotesReceivableNet_a087b807-6dff-4434-af3d-1dcb8bef5c4e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsAndNotesReceivableNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_b79efce3-5da1-4204-a140-bca5e48dc39c" xlink:to="loc_us-gaap_AccountsAndNotesReceivableNet_a087b807-6dff-4434-af3d-1dcb8bef5c4e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_81b27c26-6b23-4346-a17b-404c8069f2fa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_b79efce3-5da1-4204-a140-bca5e48dc39c" xlink:to="loc_us-gaap_InventoryNet_81b27c26-6b23-4346-a17b-404c8069f2fa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_f7be3166-da7e-40cc-981d-04d71f8c228b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_b79efce3-5da1-4204-a140-bca5e48dc39c" xlink:to="loc_us-gaap_OtherAssetsCurrent_f7be3166-da7e-40cc-981d-04d71f8c228b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_74c7515f-469d-4d40-8799-0f4039a38d9e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValueOutstanding_6407eb41-3dbd-4ca1-8476-42faff4f04fb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockValueOutstanding"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_74c7515f-469d-4d40-8799-0f4039a38d9e" xlink:to="loc_us-gaap_CommonStockValueOutstanding_6407eb41-3dbd-4ca1-8476-42faff4f04fb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_23179d63-28c5-4e51-a4df-e037a8a13b9a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_74c7515f-469d-4d40-8799-0f4039a38d9e" xlink:to="loc_us-gaap_AdditionalPaidInCapital_23179d63-28c5-4e51-a4df-e037a8a13b9a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_5d5d06bf-17bd-4fa9-9ced-50b91d892e81" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_74c7515f-469d-4d40-8799-0f4039a38d9e" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_5d5d06bf-17bd-4fa9-9ced-50b91d892e81" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_fa193b1d-9b8c-4b3b-b5a4-57b245b14fb5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_74c7515f-469d-4d40-8799-0f4039a38d9e" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_fa193b1d-9b8c-4b3b-b5a4-57b245b14fb5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_e2ecf304-0627-4d93-b198-feb0b6bff9cd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_95d92a4a-9e1d-4a22-aa1a-ffb5fb64c7e0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_e2ecf304-0627-4d93-b198-feb0b6bff9cd" xlink:to="loc_us-gaap_AccountsPayableCurrent_95d92a4a-9e1d-4a22-aa1a-ffb5fb64c7e0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_3a11e907-f73e-45da-925a-349a4c8fbffa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_e2ecf304-0627-4d93-b198-feb0b6bff9cd" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_3a11e907-f73e-45da-925a-349a4c8fbffa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_a802b54f-53df-441a-9f35-379788b3a6f3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_e2ecf304-0627-4d93-b198-feb0b6bff9cd" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_a802b54f-53df-441a-9f35-379788b3a6f3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherShortTermBorrowings_bd3d2ea5-34d6-4cc1-b971-b533334417b5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherShortTermBorrowings"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_e2ecf304-0627-4d93-b198-feb0b6bff9cd" xlink:to="loc_us-gaap_OtherShortTermBorrowings_bd3d2ea5-34d6-4cc1-b971-b533334417b5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_61109234-3a60-4719-8953-4d15e9d532a8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_3ea0a173-c464-4dd2-aa23-b53562317519" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_61109234-3a60-4719-8953-4d15e9d532a8" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_3ea0a173-c464-4dd2-aa23-b53562317519" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_24d614b3-cb9e-4010-8e0c-64693438a4d5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_61109234-3a60-4719-8953-4d15e9d532a8" xlink:to="loc_us-gaap_Goodwill_24d614b3-cb9e-4010-8e0c-64693438a4d5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsMiscellaneousNoncurrent_88ee7e0b-7dd8-4c34-9620-9eaa3be4e741" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsMiscellaneousNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_61109234-3a60-4719-8953-4d15e9d532a8" xlink:to="loc_us-gaap_OtherAssetsMiscellaneousNoncurrent_88ee7e0b-7dd8-4c34-9620-9eaa3be4e741" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pentair.com/role/CondensedConsolidatedStatementsofCashFlows" xlink:type="simple" xlink:href="pnr-20250630.xsd#CondensedConsolidatedStatementsofCashFlows"/>
  <link:calculationLink xlink:role="http://www.pentair.com/role/CondensedConsolidatedStatementsofCashFlows" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_c9ecfb14-0c73-4119-b0d1-90f568a2660a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_7d26bbad-eb11-4281-b290-11ec527ff21f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_c9ecfb14-0c73-4119-b0d1-90f568a2660a" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_7d26bbad-eb11-4281-b290-11ec527ff21f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_a77bcb89-0c9b-4552-8409-e65d87db9033" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_c9ecfb14-0c73-4119-b0d1-90f568a2660a" xlink:to="loc_us-gaap_ProfitLoss_a77bcb89-0c9b-4552-8409-e65d87db9033" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_c9704421-9d12-4f68-98f4-8e5a324161e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherCurrentLiabilities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_c9ecfb14-0c73-4119-b0d1-90f568a2660a" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_c9704421-9d12-4f68-98f4-8e5a324161e6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_b8275e91-9dbb-4cdb-829d-5031c6878769" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_c9ecfb14-0c73-4119-b0d1-90f568a2660a" xlink:to="loc_us-gaap_ShareBasedCompensation_b8275e91-9dbb-4cdb-829d-5031c6878769" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_0a70f51e-2741-4ca4-a67c-924c0b6b0dcf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_c9ecfb14-0c73-4119-b0d1-90f568a2660a" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_0a70f51e-2741-4ca4-a67c-924c0b6b0dcf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_0e992316-7168-4b9a-aea7-4e50eb85ba00" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_c9ecfb14-0c73-4119-b0d1-90f568a2660a" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_0e992316-7168-4b9a-aea7-4e50eb85ba00" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Depreciation_de19f7ee-f73e-4b02-bc70-ad030f02938f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Depreciation"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_c9ecfb14-0c73-4119-b0d1-90f568a2660a" xlink:to="loc_us-gaap_Depreciation_de19f7ee-f73e-4b02-bc70-ad030f02938f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_ebdf229e-d62e-4b20-8ac9-98e45cc6dc40" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_c9ecfb14-0c73-4119-b0d1-90f568a2660a" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_ebdf229e-d62e-4b20-8ac9-98e45cc6dc40" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_a5f2c344-01fb-4b13-9833-ab49bb9d3625" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxesAndTaxCredits"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_c9ecfb14-0c73-4119-b0d1-90f568a2660a" xlink:to="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_a5f2c344-01fb-4b13-9833-ab49bb9d3625" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherEmployeeRelatedLiabilities_8da6a3b3-0473-40d9-a5c8-60d2f8acc6c0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherEmployeeRelatedLiabilities"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_c9ecfb14-0c73-4119-b0d1-90f568a2660a" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherEmployeeRelatedLiabilities_8da6a3b3-0473-40d9-a5c8-60d2f8acc6c0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_5ecc4768-f94a-4a98-9aa2-635ed0d166fc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_c9ecfb14-0c73-4119-b0d1-90f568a2660a" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_5ecc4768-f94a-4a98-9aa2-635ed0d166fc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_1c7af078-b1cc-4340-be4f-63bf353a7047" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_c9ecfb14-0c73-4119-b0d1-90f568a2660a" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_1c7af078-b1cc-4340-be4f-63bf353a7047" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_5b1873c4-e3de-48ba-8f7e-cd44d9f2f608" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetImpairmentCharges"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_c9ecfb14-0c73-4119-b0d1-90f568a2660a" xlink:to="loc_us-gaap_AssetImpairmentCharges_5b1873c4-e3de-48ba-8f7e-cd44d9f2f608" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet_0e0da0da-a20d-4870-8c2a-f38e6b2039df" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet"/>
    <link:calculationArc order="14" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_c9ecfb14-0c73-4119-b0d1-90f568a2660a" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet_0e0da0da-a20d-4870-8c2a-f38e6b2039df" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_fc9e0ccd-0eb2-42ab-a8d1-4635711cfb10" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherCurrentAssets"/>
    <link:calculationArc order="15" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_c9ecfb14-0c73-4119-b0d1-90f568a2660a" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_fc9e0ccd-0eb2-42ab-a8d1-4635711cfb10" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfBusiness_53a31d04-2ba2-4b20-9356-cf91f56b0342" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainLossOnSaleOfBusiness"/>
    <link:calculationArc order="16" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_c9ecfb14-0c73-4119-b0d1-90f568a2660a" xlink:to="loc_us-gaap_GainLossOnSaleOfBusiness_53a31d04-2ba2-4b20-9356-cf91f56b0342" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a26bcff5-d40c-4e8d-9d55-f78563b2fa25" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfShortTermDebt_2f8ddaa2-fcdb-42b5-938d-316f79dbafc4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromRepaymentsOfShortTermDebt"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a26bcff5-d40c-4e8d-9d55-f78563b2fa25" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfShortTermDebt_2f8ddaa2-fcdb-42b5-938d-316f79dbafc4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLongTermLinesOfCredit_a58faec4-8a7c-49e0-a469-a071e7d8703f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromLongTermLinesOfCredit"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a26bcff5-d40c-4e8d-9d55-f78563b2fa25" xlink:to="loc_us-gaap_ProceedsFromLongTermLinesOfCredit_a58faec4-8a7c-49e0-a469-a071e7d8703f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_863d1222-401c-4d97-9c52-7c03e7c68132" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RepaymentsOfLongTermDebt"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a26bcff5-d40c-4e8d-9d55-f78563b2fa25" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_863d1222-401c-4d97-9c52-7c03e7c68132" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_c60746c4-aa4b-4463-94c1-bd547d3c8b77" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsOfDebtIssuanceCosts"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a26bcff5-d40c-4e8d-9d55-f78563b2fa25" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_c60746c4-aa4b-4463-94c1-bd547d3c8b77" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pnr_ProceedsIssuanceOfSharesShareBasedPaymentArrangementIncludingOptionExercisedNetOfSharesWithheld_917f1946-6e1a-4e30-8b00-94e6d34e7471" xlink:href="pnr-20250630.xsd#pnr_ProceedsIssuanceOfSharesShareBasedPaymentArrangementIncludingOptionExercisedNetOfSharesWithheld"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a26bcff5-d40c-4e8d-9d55-f78563b2fa25" xlink:to="loc_pnr_ProceedsIssuanceOfSharesShareBasedPaymentArrangementIncludingOptionExercisedNetOfSharesWithheld_917f1946-6e1a-4e30-8b00-94e6d34e7471" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfEquity_16620ab6-894c-4c73-b4fc-ffbbf3d0b984" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForRepurchaseOfEquity"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a26bcff5-d40c-4e8d-9d55-f78563b2fa25" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfEquity_16620ab6-894c-4c73-b4fc-ffbbf3d0b984" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_ffc00e70-b5d3-43ea-a674-8c1c43bf2ba1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a26bcff5-d40c-4e8d-9d55-f78563b2fa25" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_ffc00e70-b5d3-43ea-a674-8c1c43bf2ba1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_27a8875f-2aa2-472e-88ff-3c0cff8466db" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireInvestments_ce41b4df-b2d3-406c-82ce-b85945760c21" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireInvestments"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_27a8875f-2aa2-472e-88ff-3c0cff8466db" xlink:to="loc_us-gaap_PaymentsToAcquireInvestments_ce41b4df-b2d3-406c-82ce-b85945760c21" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_82063fc5-8815-49ff-a8cb-9d2bad66716a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_27a8875f-2aa2-472e-88ff-3c0cff8466db" xlink:to="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_82063fc5-8815-49ff-a8cb-9d2bad66716a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_1549e83d-38bb-4888-a5a3-b84dee5b110c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_27a8875f-2aa2-472e-88ff-3c0cff8466db" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_1549e83d-38bb-4888-a5a3-b84dee5b110c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_c056dbb0-5ef0-4412-9cbf-4ea945a72bae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_27a8875f-2aa2-472e-88ff-3c0cff8466db" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_c056dbb0-5ef0-4412-9cbf-4ea945a72bae" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a48e0ced-6967-4465-ad49-8d3ab651e14c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_7c4be95b-8503-4ccf-afca-06c1e1c5282e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a48e0ced-6967-4465-ad49-8d3ab651e14c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_7c4be95b-8503-4ccf-afca-06c1e1c5282e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_99b52c2d-8cf4-466d-8e28-94741d5fab02" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a48e0ced-6967-4465-ad49-8d3ab651e14c" xlink:to="loc_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_99b52c2d-8cf4-466d-8e28-94741d5fab02" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_ade0efb9-ee11-4a5d-ad06-ef647e999d20" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dd1e4a51-a116-4c5c-ad2e-eedf30ff66cd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_ade0efb9-ee11-4a5d-ad06-ef647e999d20" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_dd1e4a51-a116-4c5c-ad2e-eedf30ff66cd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_f2b397a3-7373-4014-b79d-810fd2d41d5f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_ade0efb9-ee11-4a5d-ad06-ef647e999d20" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_f2b397a3-7373-4014-b79d-810fd2d41d5f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7d6e9789-c3f3-4cd9-bf7c-94638799b3ce" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_ade0efb9-ee11-4a5d-ad06-ef647e999d20" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7d6e9789-c3f3-4cd9-bf7c-94638799b3ce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_c5ad53a4-c08a-4bdf-8fa4-f2d90f3965de" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_ade0efb9-ee11-4a5d-ad06-ef647e999d20" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_c5ad53a4-c08a-4bdf-8fa4-f2d90f3965de" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pentair.com/role/RevenueScheduleofContractAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="pnr-20250630.xsd#RevenueScheduleofContractAssetsandLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.pentair.com/role/RevenueScheduleofContractAssetsandLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_pnr_ContractWithCustomerAssetLiabilityNet_c0cf8601-994e-455b-8dd1-f9364c7bebab" xlink:href="pnr-20250630.xsd#pnr_ContractWithCustomerAssetLiabilityNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNetCurrent_f2500308-af5c-4992-81d3-1016180990a2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerAssetNetCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_pnr_ContractWithCustomerAssetLiabilityNet_c0cf8601-994e-455b-8dd1-f9364c7bebab" xlink:to="loc_us-gaap_ContractWithCustomerAssetNetCurrent_f2500308-af5c-4992-81d3-1016180990a2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiability_62b7e5e7-2a69-49e1-83a3-b15ec05aa810" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerLiability"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_pnr_ContractWithCustomerAssetLiabilityNet_c0cf8601-994e-455b-8dd1-f9364c7bebab" xlink:to="loc_us-gaap_ContractWithCustomerLiability_62b7e5e7-2a69-49e1-83a3-b15ec05aa810" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pentair.com/role/RestructuringandTransformationProgramCostsIncludedinSellingGeneralAdministrativeExpensesDetail" xlink:type="simple" xlink:href="pnr-20250630.xsd#RestructuringandTransformationProgramCostsIncludedinSellingGeneralAdministrativeExpensesDetail"/>
  <link:calculationLink xlink:role="http://www.pentair.com/role/RestructuringandTransformationProgramCostsIncludedinSellingGeneralAdministrativeExpensesDetail" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_pnr_TotalRestructuringAndTransformationCosts_90aeec51-443b-4ada-9a82-607861ea906c" xlink:href="pnr-20250630.xsd#pnr_TotalRestructuringAndTransformationCosts"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_9d6e7e06-2696-4c71-a7ef-4a5a3eac9194" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCharges"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_pnr_TotalRestructuringAndTransformationCosts_90aeec51-443b-4ada-9a82-607861ea906c" xlink:to="loc_us-gaap_RestructuringCharges_9d6e7e06-2696-4c71-a7ef-4a5a3eac9194" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pnr_TransformationCosts_ce6f4028-0ece-4b73-807c-a170afc69e51" xlink:href="pnr-20250630.xsd#pnr_TransformationCosts"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_pnr_TotalRestructuringAndTransformationCosts_90aeec51-443b-4ada-9a82-607861ea906c" xlink:to="loc_pnr_TransformationCosts_ce6f4028-0ece-4b73-807c-a170afc69e51" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pentair.com/role/EarningsPerShareDetail" xlink:type="simple" xlink:href="pnr-20250630.xsd#EarningsPerShareDetail"/>
  <link:calculationLink xlink:role="http://www.pentair.com/role/EarningsPerShareDetail" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_e5b02846-e529-4c2a-8010-bcf2db7f1dca" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_079a8117-20a7-429f-b162-f084c2aec803" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_e5b02846-e529-4c2a-8010-bcf2db7f1dca" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_079a8117-20a7-429f-b162-f084c2aec803" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_b32df8e5-19d5-40ec-8c13-50277335ffae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_e5b02846-e529-4c2a-8010-bcf2db7f1dca" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_b32df8e5-19d5-40ec-8c13-50277335ffae" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pentair.com/role/SupplementalBalanceSheetInformationDetail" xlink:type="simple" xlink:href="pnr-20250630.xsd#SupplementalBalanceSheetInformationDetail"/>
  <link:calculationLink xlink:role="http://www.pentair.com/role/SupplementalBalanceSheetInformationDetail" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_bc4cd54e-e7b5-4edb-9ec2-ca7944e9d2a1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryRawMaterialsAndSupplies_6b1c1727-fcb0-4869-80d7-2ba3bfb90f6d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryRawMaterialsAndSupplies"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_bc4cd54e-e7b5-4edb-9ec2-ca7944e9d2a1" xlink:to="loc_us-gaap_InventoryRawMaterialsAndSupplies_6b1c1727-fcb0-4869-80d7-2ba3bfb90f6d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryWorkInProcess_b7152153-acd2-43e3-956a-35564ffd5d2b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryWorkInProcess"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_bc4cd54e-e7b5-4edb-9ec2-ca7944e9d2a1" xlink:to="loc_us-gaap_InventoryWorkInProcess_b7152153-acd2-43e3-956a-35564ffd5d2b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryFinishedGoods_b0c05c43-96b5-4a91-b921-ad1d8c05e53e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryFinishedGoods"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_bc4cd54e-e7b5-4edb-9ec2-ca7944e9d2a1" xlink:to="loc_us-gaap_InventoryFinishedGoods_b0c05c43-96b5-4a91-b921-ad1d8c05e53e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_a5ce2fbd-ca19-40c8-bfc4-527a6184754c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_47bfa5a5-d47f-41de-9c1e-c0c19a4f0dc6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_a5ce2fbd-ca19-40c8-bfc4-527a6184754c" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_47bfa5a5-d47f-41de-9c1e-c0c19a4f0dc6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_bc31b552-b447-419f-b397-df95509ae2c6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_a5ce2fbd-ca19-40c8-bfc4-527a6184754c" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_bc31b552-b447-419f-b397-df95509ae2c6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsMiscellaneousNoncurrent_6e57715e-6e02-475d-9039-b96b2daf9673" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsMiscellaneousNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_428533b0-0591-47ba-a489-73e3c91e1d8e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsMiscellaneousNoncurrent_6e57715e-6e02-475d-9039-b96b2daf9673" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_428533b0-0591-47ba-a489-73e3c91e1d8e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pnr_OtherLongTermAssets_23b2b651-5e4e-46cf-a0bf-e935848116ec" xlink:href="pnr-20250630.xsd#pnr_OtherLongTermAssets"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsMiscellaneousNoncurrent_6e57715e-6e02-475d-9039-b96b2daf9673" xlink:to="loc_pnr_OtherLongTermAssets_23b2b651-5e4e-46cf-a0bf-e935848116ec" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_4c737b0b-88d5-422c-a970-032db6e3d703" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsMiscellaneousNoncurrent_6e57715e-6e02-475d-9039-b96b2daf9673" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_4c737b0b-88d5-422c-a970-032db6e3d703" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationPlanAssets_75704a3e-7ff6-40d4-8549-cf3e3c91003c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredCompensationPlanAssets"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsMiscellaneousNoncurrent_6e57715e-6e02-475d-9039-b96b2daf9673" xlink:to="loc_us-gaap_DeferredCompensationPlanAssets_75704a3e-7ff6-40d4-8549-cf3e3c91003c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_eafed38e-22d5-420a-8c90-299f71d36bd1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LandAndLandImprovements_15698bcd-d63b-4ce7-a29a-61d63329e5a7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LandAndLandImprovements"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentGross_eafed38e-22d5-420a-8c90-299f71d36bd1" xlink:to="loc_us-gaap_LandAndLandImprovements_15698bcd-d63b-4ce7-a29a-61d63329e5a7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingsAndImprovementsGross_3e2f593b-dd0a-4f72-aff5-706e3c5d1dcb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BuildingsAndImprovementsGross"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentGross_eafed38e-22d5-420a-8c90-299f71d36bd1" xlink:to="loc_us-gaap_BuildingsAndImprovementsGross_3e2f593b-dd0a-4f72-aff5-706e3c5d1dcb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MachineryAndEquipmentGross_3a1c1a05-4e52-473f-a74b-ca6c608390f9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MachineryAndEquipmentGross"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentGross_eafed38e-22d5-420a-8c90-299f71d36bd1" xlink:to="loc_us-gaap_MachineryAndEquipmentGross_3a1c1a05-4e52-473f-a74b-ca6c608390f9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedComputerSoftwareGross_ccb200cc-5e4e-49e1-a67c-e43d204ecbff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizedComputerSoftwareGross"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentGross_eafed38e-22d5-420a-8c90-299f71d36bd1" xlink:to="loc_us-gaap_CapitalizedComputerSoftwareGross_ccb200cc-5e4e-49e1-a67c-e43d204ecbff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressGross_fafcd2fd-ede6-4a41-aab0-eeb4196c99ad" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConstructionInProgressGross"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentGross_eafed38e-22d5-420a-8c90-299f71d36bd1" xlink:to="loc_us-gaap_ConstructionInProgressGross_fafcd2fd-ede6-4a41-aab0-eeb4196c99ad" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_6ae23454-2f1e-4b3b-a764-d5a9bb18c47c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_19adc7da-2ae2-4fcd-9e73-89e80a1e4a91" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent_6ae23454-2f1e-4b3b-a764-d5a9bb18c47c" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_19adc7da-2ae2-4fcd-9e73-89e80a1e4a91" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxesNoncurrent_7b9d50a7-9faa-462a-be48-d27a53872dc7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedIncomeTaxesNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent_6ae23454-2f1e-4b3b-a764-d5a9bb18c47c" xlink:to="loc_us-gaap_AccruedIncomeTaxesNoncurrent_7b9d50a7-9faa-462a-be48-d27a53872dc7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SelfInsuranceReserveNoncurrent_7f51f8c9-4961-4aa3-96ed-d38d0fbbc0c0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SelfInsuranceReserveNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent_6ae23454-2f1e-4b3b-a764-d5a9bb18c47c" xlink:to="loc_us-gaap_SelfInsuranceReserveNoncurrent_7f51f8c9-4961-4aa3-96ed-d38d0fbbc0c0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationLiabilityCurrent_946118f5-4215-4f65-81a1-fa382230e6af" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredCompensationLiabilityCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent_6ae23454-2f1e-4b3b-a764-d5a9bb18c47c" xlink:to="loc_us-gaap_DeferredCompensationLiabilityCurrent_946118f5-4215-4f65-81a1-fa382230e6af" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pnr_OtherLongTermLiabilities_0c50adc1-150f-4715-88d9-15f54b0f60c8" xlink:href="pnr-20250630.xsd#pnr_OtherLongTermLiabilities"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent_6ae23454-2f1e-4b3b-a764-d5a9bb18c47c" xlink:to="loc_pnr_OtherLongTermLiabilities_0c50adc1-150f-4715-88d9-15f54b0f60c8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure_eefdb68c-d222-4f19-aab2-9f28d723cbbd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent_6ae23454-2f1e-4b3b-a764-d5a9bb18c47c" xlink:to="loc_us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure_eefdb68c-d222-4f19-aab2-9f28d723cbbd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_feb64cb8-23ff-4123-87cf-1ab2940de2fa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherPrepaidExpenseCurrent_19e02546-1a35-491d-840c-053b0a520064" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherPrepaidExpenseCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_feb64cb8-23ff-4123-87cf-1ab2940de2fa" xlink:to="loc_us-gaap_OtherPrepaidExpenseCurrent_19e02546-1a35-491d-840c-053b0a520064" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pnr_OtherCurrentAssets_4f6ad094-23f7-4bf5-ab84-f6b309d631bf" xlink:href="pnr-20250630.xsd#pnr_OtherCurrentAssets"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_feb64cb8-23ff-4123-87cf-1ab2940de2fa" xlink:to="loc_pnr_OtherCurrentAssets_4f6ad094-23f7-4bf5-ab84-f6b309d631bf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNetCurrent_87c2a757-22a4-4937-a8bb-2f77dc984e73" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerAssetNetCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsCurrent_feb64cb8-23ff-4123-87cf-1ab2940de2fa" xlink:to="loc_us-gaap_ContractWithCustomerAssetNetCurrent_87c2a757-22a4-4937-a8bb-2f77dc984e73" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_9053f15c-6e22-4f87-ac64-35bfb10e2a07" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_13ee9bd1-b7f8-4069-8731-3b8caef6a52a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProductWarrantyAccrualClassifiedCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_9053f15c-6e22-4f87-ac64-35bfb10e2a07" xlink:to="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_13ee9bd1-b7f8-4069-8731-3b8caef6a52a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pnr_AccruedFreight_2a53cff1-e930-485f-b260-3185f06f6127" xlink:href="pnr-20250630.xsd#pnr_AccruedFreight"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_9053f15c-6e22-4f87-ac64-35bfb10e2a07" xlink:to="loc_pnr_AccruedFreight_2a53cff1-e930-485f-b260-3185f06f6127" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserve_cc16ea83-1d20-4ae6-b03c-72bd41d83b40" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringReserve"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_9053f15c-6e22-4f87-ac64-35bfb10e2a07" xlink:to="loc_us-gaap_RestructuringReserve_cc16ea83-1d20-4ae6-b03c-72bd41d83b40" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPayableCurrent_3db87024-f706-409f-a814-3c7182bfdd5e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DividendsPayableCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_9053f15c-6e22-4f87-ac64-35bfb10e2a07" xlink:to="loc_us-gaap_DividendsPayableCurrent_3db87024-f706-409f-a814-3c7182bfdd5e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_864947d9-cce7-4d81-a673-edb3f2d12209" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_9053f15c-6e22-4f87-ac64-35bfb10e2a07" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_864947d9-cce7-4d81-a673-edb3f2d12209" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_4a956c84-92e4-4a1b-b491-6e141864c1d4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAccruedLiabilitiesCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_9053f15c-6e22-4f87-ac64-35bfb10e2a07" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent_4a956c84-92e4-4a1b-b491-6e141864c1d4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxesPayableCurrentAndNoncurrent_c2552c6b-47d7-4241-9543-7413b3de672d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TaxesPayableCurrentAndNoncurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_9053f15c-6e22-4f87-ac64-35bfb10e2a07" xlink:to="loc_us-gaap_TaxesPayableCurrentAndNoncurrent_c2552c6b-47d7-4241-9543-7413b3de672d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_ca3a1252-870a-4755-9e6f-9473abacd070" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_9053f15c-6e22-4f87-ac64-35bfb10e2a07" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_ca3a1252-870a-4755-9e6f-9473abacd070" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedExchangeFeeRebateCurrentAndNoncurrent_357e3b16-0fa1-4649-b70c-faeac19599a2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedExchangeFeeRebateCurrentAndNoncurrent"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_9053f15c-6e22-4f87-ac64-35bfb10e2a07" xlink:to="loc_us-gaap_AccruedExchangeFeeRebateCurrentAndNoncurrent_357e3b16-0fa1-4649-b70c-faeac19599a2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPayableCurrentAndNoncurrent_92e967e8-e38b-427c-9ae6-5a4b10d43053" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestPayableCurrentAndNoncurrent"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_9053f15c-6e22-4f87-ac64-35bfb10e2a07" xlink:to="loc_us-gaap_InterestPayableCurrentAndNoncurrent_92e967e8-e38b-427c-9ae6-5a4b10d43053" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pentair.com/role/GoodwillandOtherIdentifiableIntangibleAssetsDetailofIdentifiableIntangibleAssetsDetail" xlink:type="simple" xlink:href="pnr-20250630.xsd#GoodwillandOtherIdentifiableIntangibleAssetsDetailofIdentifiableIntangibleAssetsDetail"/>
  <link:calculationLink xlink:role="http://www.pentair.com/role/GoodwillandOtherIdentifiableIntangibleAssetsDetailofIdentifiableIntangibleAssetsDetail" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_aa89e37f-41a6-4e35-b00b-dd03fd99f982" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_f021aea8-4cdc-4c0f-a9a8-cc327901580f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IntangibleAssetsGrossExcludingGoodwill"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_aa89e37f-41a6-4e35-b00b-dd03fd99f982" xlink:to="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_f021aea8-4cdc-4c0f-a9a8-cc327901580f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_f0727d8c-c438-4423-87bf-38b9a1e1df74" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_aa89e37f-41a6-4e35-b00b-dd03fd99f982" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_f0727d8c-c438-4423-87bf-38b9a1e1df74" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_3958b081-880d-44bb-9bff-30b129b42c32" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_39756a60-721e-4dbc-88b7-f38068c673b2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_3958b081-880d-44bb-9bff-30b129b42c32" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_39756a60-721e-4dbc-88b7-f38068c673b2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_01b9f0ea-8cb1-4391-8423-ac83673524b0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_3958b081-880d-44bb-9bff-30b129b42c32" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_01b9f0ea-8cb1-4391-8423-ac83673524b0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_611fbb3f-a5e4-4765-822f-4d86fd6cfab6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IntangibleAssetsGrossExcludingGoodwill"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_a21457a5-4572-41ea-82e9-3f8bdc296edf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_611fbb3f-a5e4-4765-822f-4d86fd6cfab6" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_a21457a5-4572-41ea-82e9-3f8bdc296edf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_a940584a-9929-46e7-8996-7664dbb20a45" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_611fbb3f-a5e4-4765-822f-4d86fd6cfab6" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_a940584a-9929-46e7-8996-7664dbb20a45" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pentair.com/role/GoodwillandOtherIdentifiableIntangibleAssetsDetailofIdentifiableIntangibleAssetsDetail_1" xlink:type="simple" xlink:href="pnr-20250630.xsd#GoodwillandOtherIdentifiableIntangibleAssetsDetailofIdentifiableIntangibleAssetsDetail_1"/>
  <link:calculationLink xlink:role="http://www.pentair.com/role/GoodwillandOtherIdentifiableIntangibleAssetsDetailofIdentifiableIntangibleAssetsDetail_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_ca9a4ce2-d3f5-47bc-b670-50e980ff21ac" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_9b0bd41b-7685-42ff-b2a7-32fdab971f46" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_ca9a4ce2-d3f5-47bc-b670-50e980ff21ac" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_9b0bd41b-7685-42ff-b2a7-32fdab971f46" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_c1609565-7c6e-488d-9902-01b749eedf5d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_ca9a4ce2-d3f5-47bc-b670-50e980ff21ac" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_c1609565-7c6e-488d-9902-01b749eedf5d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pentair.com/role/DebtDebtandAverageInterestRatesonDebtOutstandingDetail" xlink:type="simple" xlink:href="pnr-20250630.xsd#DebtDebtandAverageInterestRatesonDebtOutstandingDetail"/>
  <link:calculationLink xlink:role="http://www.pentair.com/role/DebtDebtandAverageInterestRatesonDebtOutstandingDetail" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtLongtermAndShorttermCombinedAmount_af0b5c03-f7eb-4ad0-9c3c-16c9ef77221d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtLongtermAndShorttermCombinedAmount"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_cc70cef2-9f6f-4308-b193-874f49c98961" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebt"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtLongtermAndShorttermCombinedAmount_af0b5c03-f7eb-4ad0-9c3c-16c9ef77221d" xlink:to="loc_us-gaap_LongTermDebt_cc70cef2-9f6f-4308-b193-874f49c98961" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherShortTermBorrowings_70d541f2-593b-4e12-ae78-48ff77ac2866" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherShortTermBorrowings"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtLongtermAndShorttermCombinedAmount_af0b5c03-f7eb-4ad0-9c3c-16c9ef77221d" xlink:to="loc_us-gaap_OtherShortTermBorrowings_70d541f2-593b-4e12-ae78-48ff77ac2866" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pentair.com/role/DebtDebtandAverageInterestRatesonDebtOutstandingDetail_1" xlink:type="simple" xlink:href="pnr-20250630.xsd#DebtDebtandAverageInterestRatesonDebtOutstandingDetail_1"/>
  <link:calculationLink xlink:role="http://www.pentair.com/role/DebtDebtandAverageInterestRatesonDebtOutstandingDetail_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtLongtermAndShorttermCombinedAmount_22539602-51b5-424a-a9cc-95cb00f1ba12" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtLongtermAndShorttermCombinedAmount"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_065f67ff-77aa-4239-a96e-a85e4af45796" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtLongtermAndShorttermCombinedAmount_22539602-51b5-424a-a9cc-95cb00f1ba12" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_065f67ff-77aa-4239-a96e-a85e4af45796" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnamortizedDebtIssuanceExpense_8a05e189-9102-417a-940e-6f38ec7a43c4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnamortizedDebtIssuanceExpense"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtLongtermAndShorttermCombinedAmount_22539602-51b5-424a-a9cc-95cb00f1ba12" xlink:to="loc_us-gaap_UnamortizedDebtIssuanceExpense_8a05e189-9102-417a-940e-6f38ec7a43c4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherShortTermBorrowings_dae7fbf8-2dd8-4b8a-86e4-8635059b758a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherShortTermBorrowings"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtLongtermAndShorttermCombinedAmount_22539602-51b5-424a-a9cc-95cb00f1ba12" xlink:to="loc_us-gaap_OtherShortTermBorrowings_dae7fbf8-2dd8-4b8a-86e4-8635059b758a" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pentair.com/role/DebtDebtOutstandingMaturesonCalendarYearBasisDetail" xlink:type="simple" xlink:href="pnr-20250630.xsd#DebtDebtOutstandingMaturesonCalendarYearBasisDetail"/>
  <link:calculationLink xlink:role="http://www.pentair.com/role/DebtDebtOutstandingMaturesonCalendarYearBasisDetail" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_pnr_DebtLongTermAndShortTermCombinedAmountGross_77f8be3a-74f9-485d-b260-c262d7cd6aa7" xlink:href="pnr-20250630.xsd#pnr_DebtLongTermAndShortTermCombinedAmountGross"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_d3740794-3aa1-4840-90e4-e9a5463f9147" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_pnr_DebtLongTermAndShortTermCombinedAmountGross_77f8be3a-74f9-485d-b260-c262d7cd6aa7" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_d3740794-3aa1-4840-90e4-e9a5463f9147" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_301441b2-5066-4d5e-bf5a-0fe4ca23cddd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_pnr_DebtLongTermAndShortTermCombinedAmountGross_77f8be3a-74f9-485d-b260-c262d7cd6aa7" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_301441b2-5066-4d5e-bf5a-0fe4ca23cddd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_376eaded-cf1a-4805-a73a-f66882b1a061" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_pnr_DebtLongTermAndShortTermCombinedAmountGross_77f8be3a-74f9-485d-b260-c262d7cd6aa7" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_376eaded-cf1a-4805-a73a-f66882b1a061" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_b14a4014-37d2-4d36-8cba-660ea4c272c5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_pnr_DebtLongTermAndShortTermCombinedAmountGross_77f8be3a-74f9-485d-b260-c262d7cd6aa7" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_b14a4014-37d2-4d36-8cba-660ea4c272c5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_0a82f788-86fc-4fa7-bb04-567247d7b2e8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_pnr_DebtLongTermAndShortTermCombinedAmountGross_77f8be3a-74f9-485d-b260-c262d7cd6aa7" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_0a82f788-86fc-4fa7-bb04-567247d7b2e8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_ad52624b-db33-4375-b7f5-2af1d911e614" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_pnr_DebtLongTermAndShortTermCombinedAmountGross_77f8be3a-74f9-485d-b260-c262d7cd6aa7" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_ad52624b-db33-4375-b7f5-2af1d911e614" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_84c99c30-41ce-4698-9242-52a06289ce5b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_pnr_DebtLongTermAndShortTermCombinedAmountGross_77f8be3a-74f9-485d-b260-c262d7cd6aa7" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_84c99c30-41ce-4698-9242-52a06289ce5b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pentair.com/role/DerivativesandFinancialInstrumentsRecordedAmountsandEstimatedFairValuesDetail" xlink:type="simple" xlink:href="pnr-20250630.xsd#DerivativesandFinancialInstrumentsRecordedAmountsandEstimatedFairValuesDetail"/>
  <link:calculationLink xlink:role="http://www.pentair.com/role/DerivativesandFinancialInstrumentsRecordedAmountsandEstimatedFairValuesDetail" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_a8f455bd-8e92-42c8-b754-972c7c73f16f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtPercentageBearingVariableInterestAmount_f994b2c0-d56c-4d93-b907-945f9b884021" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtPercentageBearingVariableInterestAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_a8f455bd-8e92-42c8-b754-972c7c73f16f" xlink:to="loc_us-gaap_LongtermDebtPercentageBearingVariableInterestAmount_f994b2c0-d56c-4d93-b907-945f9b884021" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtPercentageBearingFixedInterestAmount_2880726a-5e95-4ff0-9e8f-74d87bfb57fa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtPercentageBearingFixedInterestAmount"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_a8f455bd-8e92-42c8-b754-972c7c73f16f" xlink:to="loc_us-gaap_LongtermDebtPercentageBearingFixedInterestAmount_2880726a-5e95-4ff0-9e8f-74d87bfb57fa" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pentair.com/role/DerivativesandFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueDetail" xlink:type="simple" xlink:href="pnr-20250630.xsd#DerivativesandFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueDetail"/>
  <link:calculationLink xlink:role="http://www.pentair.com/role/DerivativesandFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueDetail" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet_86462c36-b570-424e-b916-3c4f59e0a42b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets_169faf63-1ebb-41d0-8c68-409e117a265a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeAssets"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet_86462c36-b570-424e-b916-3c4f59e0a42b" xlink:to="loc_us-gaap_DerivativeAssets_169faf63-1ebb-41d0-8c68-409e117a265a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_7d68d4a4-533f-425a-b69e-d2aec9196a87" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeLiabilities"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet_86462c36-b570-424e-b916-3c4f59e0a42b" xlink:to="loc_us-gaap_DerivativeLiabilities_7d68d4a4-533f-425a-b69e-d2aec9196a87" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyContractAssetFairValueDisclosure_06f1cc97-f1d6-4e46-a400-8703ad47d2d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCurrencyContractAssetFairValueDisclosure"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet_86462c36-b570-424e-b916-3c4f59e0a42b" xlink:to="loc_us-gaap_ForeignCurrencyContractAssetFairValueDisclosure_06f1cc97-f1d6-4e46-a400-8703ad47d2d7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure_8546fa8b-227a-4fb1-b0f9-46c83847f9fd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet_86462c36-b570-424e-b916-3c4f59e0a42b" xlink:to="loc_us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure_8546fa8b-227a-4fb1-b0f9-46c83847f9fd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pnr_DeferredCompensationPlanAssetsFairValueDisclosure_18281826-0205-4a5f-90a5-5a1695e3365b" xlink:href="pnr-20250630.xsd#pnr_DeferredCompensationPlanAssetsFairValueDisclosure"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet_86462c36-b570-424e-b916-3c4f59e0a42b" xlink:to="loc_pnr_DeferredCompensationPlanAssetsFairValueDisclosure_18281826-0205-4a5f-90a5-5a1695e3365b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pnr_ContingentEarnOutLiabilitiesFairValueDisclosure_08cd1249-2665-4d90-914d-81a6f1e05896" xlink:href="pnr-20250630.xsd#pnr_ContingentEarnOutLiabilitiesFairValueDisclosure"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet_86462c36-b570-424e-b916-3c4f59e0a42b" xlink:to="loc_pnr_ContingentEarnOutLiabilitiesFairValueDisclosure_08cd1249-2665-4d90-914d-81a6f1e05896" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pentair.com/role/BenefitPlansDetail" xlink:type="simple" xlink:href="pnr-20250630.xsd#BenefitPlansDetail"/>
  <link:calculationLink xlink:role="http://www.pentair.com/role/BenefitPlansDetail" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_dab0ba61-a877-4a2a-95ac-79b41859bf76" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_a0808471-8698-4a85-8217-4c86538acabe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanServiceCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_dab0ba61-a877-4a2a-95ac-79b41859bf76" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_a0808471-8698-4a85-8217-4c86538acabe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_a4c5a96c-a97c-4052-ae44-f4680602f118" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanInterestCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_dab0ba61-a877-4a2a-95ac-79b41859bf76" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_a4c5a96c-a97c-4052-ae44-f4680602f118" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_e3bae9c7-1d7e-45fa-9ddd-07292a06eaf8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_dab0ba61-a877-4a2a-95ac-79b41859bf76" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_e3bae9c7-1d7e-45fa-9ddd-07292a06eaf8" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pentair.com/role/SegmentInformationReconciliationofIncomefromContinuingOperationsfromSegmentstoConsolidatedDetails" xlink:type="simple" xlink:href="pnr-20250630.xsd#SegmentInformationReconciliationofIncomefromContinuingOperationsfromSegmentstoConsolidatedDetails"/>
  <link:calculationLink xlink:role="http://www.pentair.com/role/SegmentInformationReconciliationofIncomefromContinuingOperationsfromSegmentstoConsolidatedDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2fcc8bbb-3cfb-4788-b71b-4fdf942eab22" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_pnr_LegalSettlementAndAccrualAdjustments_4191beff-a52a-4243-ac1f-684a515f3c54" xlink:href="pnr-20250630.xsd#pnr_LegalSettlementAndAccrualAdjustments"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2fcc8bbb-3cfb-4788-b71b-4fdf942eab22" xlink:to="loc_pnr_LegalSettlementAndAccrualAdjustments_4191beff-a52a-4243-ac1f-684a515f3c54" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pnr_TransformationCosts_55d31016-4112-4f16-a1bd-383ce5cea3f8" xlink:href="pnr-20250630.xsd#pnr_TransformationCosts"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2fcc8bbb-3cfb-4788-b71b-4fdf942eab22" xlink:to="loc_pnr_TransformationCosts_55d31016-4112-4f16-a1bd-383ce5cea3f8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRevenueExpenseNet_40fd0e89-e9fc-4c8a-813f-96d8369888b8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestRevenueExpenseNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2fcc8bbb-3cfb-4788-b71b-4fdf942eab22" xlink:to="loc_us-gaap_InterestRevenueExpenseNet_40fd0e89-e9fc-4c8a-813f-96d8369888b8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherExpenses_20356822-0da6-4fa6-805b-98ff20ce1fb8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherExpenses"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2fcc8bbb-3cfb-4788-b71b-4fdf942eab22" xlink:to="loc_us-gaap_OtherExpenses_20356822-0da6-4fa6-805b-98ff20ce1fb8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_f1710eb6-2234-4dc1-943e-0060792badbf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2fcc8bbb-3cfb-4788-b71b-4fdf942eab22" xlink:to="loc_us-gaap_OperatingIncomeLoss_f1710eb6-2234-4dc1-943e-0060792badbf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_a11cc8d2-e1ce-4815-aaab-e7030479669f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2fcc8bbb-3cfb-4788-b71b-4fdf942eab22" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_a11cc8d2-e1ce-4815-aaab-e7030479669f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_1f09e601-b001-4507-8a14-f1f77927011a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCharges"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2fcc8bbb-3cfb-4788-b71b-4fdf942eab22" xlink:to="loc_us-gaap_RestructuringCharges_1f09e601-b001-4507-8a14-f1f77927011a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_262c987d-1dbb-4319-9ae0-43301bf046a3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetImpairmentCharges"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2fcc8bbb-3cfb-4788-b71b-4fdf942eab22" xlink:to="loc_us-gaap_AssetImpairmentCharges_262c987d-1dbb-4319-9ae0-43301bf046a3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfBusiness_7a03a57d-fe7a-4f2c-8bdd-41741c8e7532" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainLossOnSaleOfBusiness"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2fcc8bbb-3cfb-4788-b71b-4fdf942eab22" xlink:to="loc_us-gaap_GainLossOnSaleOfBusiness_7a03a57d-fe7a-4f2c-8bdd-41741c8e7532" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
