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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019e69cd-1360-7a3a-baf4-f82c5416fe2e,g:df8aad8c-ffe9-4efa-90d1-02419671c74e-->
<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:arcroleRef arcroleURI="https://xbrl.org/2023/arcrole/summation-item" xlink:type="simple" xlink:href="https://www.xbrl.org/2023/calculation-1.1.xsd#summation-item"/>
  <link:roleRef roleURI="http://www.pb.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="simple" xlink:href="pbi-20260630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e69cd-1721-7729-a052-f67071b3bc76" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_019e69cd-1721-70b5-b63e-955a8e19a864" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostsAndExpenses"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e69cd-1721-7729-a052-f67071b3bc76" xlink:to="loc_us-gaap_CostsAndExpenses_019e69cd-1721-70b5-b63e-955a8e19a864" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019e69cd-1721-7537-b259-c31ffa6b1bb6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Revenues"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e69cd-1721-7729-a052-f67071b3bc76" xlink:to="loc_us-gaap_Revenues_019e69cd-1721-7537-b259-c31ffa6b1bb6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_019e69cd-1721-72b0-85a8-72f667b6970c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostsAndExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_019e69cd-1721-72f9-a749-7c8f5de35dab" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019e69cd-1721-72b0-85a8-72f667b6970c" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_019e69cd-1721-72f9-a749-7c8f5de35dab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingInterestExpense_019e69cd-1721-76db-95d6-e119edb879d4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingInterestExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019e69cd-1721-72b0-85a8-72f667b6970c" xlink:to="loc_us-gaap_FinancingInterestExpense_019e69cd-1721-76db-95d6-e119edb879d4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019e69cd-1721-7a4b-9a7f-174902a842c2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019e69cd-1721-72b0-85a8-72f667b6970c" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019e69cd-1721-7a4b-9a7f-174902a842c2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_019e69cd-1721-75a2-aaa1-bb26ff892821" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019e69cd-1721-72b0-85a8-72f667b6970c" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_019e69cd-1721-75a2-aaa1-bb26ff892821" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_019e69cd-1721-76ca-8882-70254c9e608c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestructuringCostsAndAssetImpairmentCharges"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019e69cd-1721-72b0-85a8-72f667b6970c" xlink:to="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_019e69cd-1721-76ca-8882-70254c9e608c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_019e69cd-1721-7639-ba22-79de4fe9afe0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019e69cd-1721-72b0-85a8-72f667b6970c" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_019e69cd-1721-7639-ba22-79de4fe9afe0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent_019e69cd-1721-7fd1-88cf-f44fc7fb844b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019e69cd-1721-72b0-85a8-72f667b6970c" xlink:to="loc_us-gaap_NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent_019e69cd-1721-7fd1-88cf-f44fc7fb844b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonrecurringIncomeExpense_019e69cd-1721-7f18-940a-83c3eb11119b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNonrecurringIncomeExpense"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019e69cd-1721-72b0-85a8-72f667b6970c" xlink:to="loc_us-gaap_OtherNonrecurringIncomeExpense_019e69cd-1721-7f18-940a-83c3eb11119b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e69cd-1721-7685-82dd-f5915fd45cb8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e69cd-1721-78a0-8679-729dc76272cb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e69cd-1721-7685-82dd-f5915fd45cb8" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e69cd-1721-78a0-8679-729dc76272cb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019e69cd-1721-7b3f-ae2c-fdbfe01ab826" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e69cd-1721-7685-82dd-f5915fd45cb8" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019e69cd-1721-7b3f-ae2c-fdbfe01ab826" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME" xlink:type="simple" xlink:href="pbi-20260630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e69cd-1721-77c8-9f5c-f12c6bfe159f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_019e69cd-1721-75a9-a993-023ccaa1ae66" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e69cd-1721-77c8-9f5c-f12c6bfe159f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_019e69cd-1721-75a9-a993-023ccaa1ae66" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent_019e69cd-1721-7b6c-b549-82370183339a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e69cd-1721-77c8-9f5c-f12c6bfe159f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent_019e69cd-1721-7b6c-b549-82370183339a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax_019e69cd-1721-7857-b03a-c28d2e996c4f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e69cd-1721-77c8-9f5c-f12c6bfe159f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax_019e69cd-1721-7857-b03a-c28d2e996c4f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_019e69cd-1721-76fc-b832-eff67382e0c6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e69cd-1721-7e21-b6c3-551b2cde7596" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019e69cd-1721-76fc-b832-eff67382e0c6" xlink:to="loc_us-gaap_NetIncomeLoss_019e69cd-1721-7e21-b6c3-551b2cde7596" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e69cd-1721-7f2e-9f29-ed766728c0e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019e69cd-1721-76fc-b832-eff67382e0c6" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e69cd-1721-7f2e-9f29-ed766728c0e7" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="pbi-20260630.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETS"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e69cd-1721-7ac3-a147-280af9b054bb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_019e69cd-1721-7b85-ba57-a266045f152a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e69cd-1721-7ac3-a147-280af9b054bb" xlink:to="loc_us-gaap_CommitmentsAndContingencies_019e69cd-1721-7b85-ba57-a266045f152a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019e69cd-1721-7e99-ba5f-c3d89a1b6c63" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e69cd-1721-7ac3-a147-280af9b054bb" xlink:to="loc_us-gaap_StockholdersEquity_019e69cd-1721-7e99-ba5f-c3d89a1b6c63" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019e69cd-1721-7aad-a6b1-52971bc930d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e69cd-1721-7ac3-a147-280af9b054bb" xlink:to="loc_us-gaap_Liabilities_019e69cd-1721-7aad-a6b1-52971bc930d6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019e69cd-1721-7c36-8c21-19d4a20a77a1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019e69cd-1721-7fdd-a185-482a2a3058c6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e69cd-1721-7c36-8c21-19d4a20a77a1" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019e69cd-1721-7fdd-a185-482a2a3058c6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_019e69cd-1721-7aa0-ae30-e10ed3585d8b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e69cd-1721-7c36-8c21-19d4a20a77a1" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_019e69cd-1721-7aa0-ae30-e10ed3585d8b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_ReserveAccountDepositsNoncurrent_019e69cd-1721-73c8-ba84-94a7aa5a2b6d" xlink:href="pbi-20260630.xsd#pbi_ReserveAccountDepositsNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e69cd-1721-7c36-8c21-19d4a20a77a1" xlink:to="loc_pbi_ReserveAccountDepositsNoncurrent_019e69cd-1721-73c8-ba84-94a7aa5a2b6d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019e69cd-1721-78f7-a058-8bb794b66082" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e69cd-1721-7c36-8c21-19d4a20a77a1" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019e69cd-1721-78f7-a058-8bb794b66082" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilityForUncertainTaxPositionsNoncurrent_019e69cd-1721-7aa5-b475-b552469f079c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilityForUncertainTaxPositionsNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e69cd-1721-7c36-8c21-19d4a20a77a1" xlink:to="loc_us-gaap_LiabilityForUncertainTaxPositionsNoncurrent_019e69cd-1721-7aa5-b475-b552469f079c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_019e69cd-1721-718a-9761-7f4002f1707b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e69cd-1721-7c36-8c21-19d4a20a77a1" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_019e69cd-1721-718a-9761-7f4002f1707b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019e69cd-1721-7d6b-942a-bcbd0296a39a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e69cd-1721-7c36-8c21-19d4a20a77a1" xlink:to="loc_us-gaap_LiabilitiesCurrent_019e69cd-1721-7d6b-942a-bcbd0296a39a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019e69cd-1721-75d7-a284-726fb9a4fac4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_019e69cd-1721-71c3-b5ef-08cc05a8bf52" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccruedIncomeTaxesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e69cd-1721-75d7-a284-726fb9a4fac4" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_019e69cd-1721-71c3-b5ef-08cc05a8bf52" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_019e69cd-1721-7a3b-9050-675db7d1bed9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e69cd-1721-75d7-a284-726fb9a4fac4" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_019e69cd-1721-7a3b-9050-675db7d1bed9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_ReserveAccountDepositsCurrent_019e69cd-1721-71a0-9261-e2a4ab6309b1" xlink:href="pbi-20260630.xsd#pbi_ReserveAccountDepositsCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e69cd-1721-75d7-a284-726fb9a4fac4" xlink:to="loc_pbi_ReserveAccountDepositsCurrent_019e69cd-1721-71a0-9261-e2a4ab6309b1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_019e69cd-1721-7d3d-9c65-9963eb3f13d2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e69cd-1721-75d7-a284-726fb9a4fac4" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_019e69cd-1721-7d3d-9c65-9963eb3f13d2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_019e69cd-1721-73b4-bb78-4165b73c7a58" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e69cd-1721-75d7-a284-726fb9a4fac4" xlink:to="loc_us-gaap_LongTermDebtCurrent_019e69cd-1721-73b4-bb78-4165b73c7a58" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019e69cd-1721-7e1a-9280-d61b3cbf3048" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e69cd-1721-75d7-a284-726fb9a4fac4" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019e69cd-1721-7e1a-9280-d61b3cbf3048" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019e69cd-1721-73ab-9b30-c16c37b6b7b6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesReceivable_019e69cd-1721-7cff-b156-218c8822c0f9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxesReceivable"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e69cd-1721-73ab-9b30-c16c37b6b7b6" xlink:to="loc_us-gaap_IncomeTaxesReceivable_019e69cd-1721-7cff-b156-218c8822c0f9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019e69cd-1721-70c4-acd4-7fadaa340941" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e69cd-1721-73ab-9b30-c16c37b6b7b6" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019e69cd-1721-70c4-acd4-7fadaa340941" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_019e69cd-1721-7710-a82d-6e59c53d488b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e69cd-1721-73ab-9b30-c16c37b6b7b6" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_019e69cd-1721-7710-a82d-6e59c53d488b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_019e69cd-1721-781b-928d-2d4f9376c2fc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermInvestments"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e69cd-1721-73ab-9b30-c16c37b6b7b6" xlink:to="loc_us-gaap_ShortTermInvestments_019e69cd-1721-781b-928d-2d4f9376c2fc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019e69cd-1721-788d-b4eb-39d994c07af8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryNet"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e69cd-1721-73ab-9b30-c16c37b6b7b6" xlink:to="loc_us-gaap_InventoryNet_019e69cd-1721-788d-b4eb-39d994c07af8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesAndLoansReceivableNetCurrent_019e69cd-1721-7647-a2b3-632032baa4f1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NotesAndLoansReceivableNetCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e69cd-1721-73ab-9b30-c16c37b6b7b6" xlink:to="loc_us-gaap_NotesAndLoansReceivableNetCurrent_019e69cd-1721-7647-a2b3-632032baa4f1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_019e69cd-1721-71ee-aa2a-2ac2efde4cd3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e69cd-1721-73ab-9b30-c16c37b6b7b6" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_019e69cd-1721-71ee-aa2a-2ac2efde4cd3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019e69cd-1721-792d-a854-801b879b3717" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019e69cd-1721-7244-980a-918c043f5e29" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e69cd-1721-792d-a854-801b879b3717" xlink:to="loc_us-gaap_AssetsCurrent_019e69cd-1721-7244-980a-918c043f5e29" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019e69cd-1721-70af-b9b1-fb1f87faa561" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e69cd-1721-792d-a854-801b879b3717" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019e69cd-1721-70af-b9b1-fb1f87faa561" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_RentalPropertyAndEquipmentNet_019e69cd-1721-7b2b-aeb4-98e4cd26d0d6" xlink:href="pbi-20260630.xsd#pbi_RentalPropertyAndEquipmentNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e69cd-1721-792d-a854-801b879b3717" xlink:to="loc_pbi_RentalPropertyAndEquipmentNet_019e69cd-1721-7b2b-aeb4-98e4cd26d0d6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesAndLoansReceivableNetNoncurrent_019e69cd-1721-7202-848b-8a88c19e1ca8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NotesAndLoansReceivableNetNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e69cd-1721-792d-a854-801b879b3717" xlink:to="loc_us-gaap_NotesAndLoansReceivableNetNoncurrent_019e69cd-1721-7202-848b-8a88c19e1ca8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019e69cd-1721-7665-942c-2de14dc11e1c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e69cd-1721-792d-a854-801b879b3717" xlink:to="loc_us-gaap_Goodwill_019e69cd-1721-7665-942c-2de14dc11e1c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019e69cd-1721-7904-9fb1-b878a8c6d54e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e69cd-1721-792d-a854-801b879b3717" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019e69cd-1721-7904-9fb1-b878a8c6d54e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_019e69cd-1721-7bdd-89e1-9d583ac9bfe2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e69cd-1721-792d-a854-801b879b3717" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_019e69cd-1721-7bdd-89e1-9d583ac9bfe2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_019e69cd-1721-77c7-86af-bc8fd4a4d829" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e69cd-1721-792d-a854-801b879b3717" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_019e69cd-1721-77c7-86af-bc8fd4a4d829" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_019e69cd-1721-765e-8055-0dcf51a83583" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e69cd-1721-792d-a854-801b879b3717" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_019e69cd-1721-765e-8055-0dcf51a83583" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019e69cd-1721-76bb-a98b-bb38e8b575af" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_019e69cd-1721-7677-943c-2a3fe3b79a46" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e69cd-1721-76bb-a98b-bb38e8b575af" xlink:to="loc_us-gaap_CommonStockValue_019e69cd-1721-7677-943c-2a3fe3b79a46" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019e69cd-1721-7158-bfbb-c20cfdaf8d2d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e69cd-1721-76bb-a98b-bb38e8b575af" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019e69cd-1721-7158-bfbb-c20cfdaf8d2d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019e69cd-1721-7dd3-9591-2be46ff03cf7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e69cd-1721-76bb-a98b-bb38e8b575af" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019e69cd-1721-7dd3-9591-2be46ff03cf7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonValue_019e69cd-1721-7a11-b3a5-5f83c8a86bfb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonValue"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e69cd-1721-76bb-a98b-bb38e8b575af" xlink:to="loc_us-gaap_TreasuryStockCommonValue_019e69cd-1721-7a11-b3a5-5f83c8a86bfb" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="pbi-20260630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7939-a03f-27c038fd0e9e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e69cd-1721-7710-86d1-0377f62f5b98" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7939-a03f-27c038fd0e9e" xlink:to="loc_us-gaap_NetIncomeLoss_019e69cd-1721-7710-86d1-0377f62f5b98" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_019e69cd-1721-77ad-93b6-5e9d0d052c9e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7939-a03f-27c038fd0e9e" xlink:to="loc_us-gaap_DepreciationAndAmortization_019e69cd-1721-77ad-93b6-5e9d0d052c9e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FinancingReceivableAndAccountsReceivableCreditLossExpenseReversal_019e69cd-1721-7b74-9f43-792970c62c1d" xlink:href="pbi-20260630.xsd#pbi_FinancingReceivableAndAccountsReceivableCreditLossExpenseReversal"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7939-a03f-27c038fd0e9e" xlink:to="loc_pbi_FinancingReceivableAndAccountsReceivableCreditLossExpenseReversal_019e69cd-1721-7b74-9f43-792970c62c1d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_DebtorInPossessionFinancingCreditLossExpenseReversal_019e69cd-1721-74bb-990a-add4339135c1" xlink:href="pbi-20260630.xsd#pbi_DebtorInPossessionFinancingCreditLossExpenseReversal"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7939-a03f-27c038fd0e9e" xlink:to="loc_pbi_DebtorInPossessionFinancingCreditLossExpenseReversal_019e69cd-1721-74bb-990a-add4339135c1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_019e69cd-1721-792f-9e60-0f53e4e38810" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7939-a03f-27c038fd0e9e" xlink:to="loc_us-gaap_ShareBasedCompensation_019e69cd-1721-792f-9e60-0f53e4e38810" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfDeferredLoanOriginationFeesNet_019e69cd-1721-7c67-861f-890b0a0ad7fb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AmortizationOfDeferredLoanOriginationFeesNet"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7939-a03f-27c038fd0e9e" xlink:to="loc_us-gaap_AmortizationOfDeferredLoanOriginationFeesNet_019e69cd-1721-7c67-861f-890b0a0ad7fb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019e69cd-1721-723b-9d5f-86a6176fcb6a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7939-a03f-27c038fd0e9e" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019e69cd-1721-723b-9d5f-86a6176fcb6a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_019e69cd-1721-737d-9812-673586420219" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestructuringCharges"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7939-a03f-27c038fd0e9e" xlink:to="loc_us-gaap_RestructuringCharges_019e69cd-1721-737d-9812-673586420219" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRestructuring_019e69cd-1721-76e0-99cd-7b38d646ed5e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForRestructuring"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7939-a03f-27c038fd0e9e" xlink:to="loc_us-gaap_PaymentsForRestructuring_019e69cd-1721-76e0-99cd-7b38d646ed5e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfOtherAssets_019e69cd-1721-73e2-bba8-f014bfd3a02b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnSaleOfOtherAssets"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7939-a03f-27c038fd0e9e" xlink:to="loc_us-gaap_GainLossOnSaleOfOtherAssets_019e69cd-1721-73e2-bba8-f014bfd3a02b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_GainLossOnRevaluationOfIntercompanyLoans_019e69cd-1721-72b4-b956-0e57a433cb8b" xlink:href="pbi-20260630.xsd#pbi_GainLossOnRevaluationOfIntercompanyLoans"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7939-a03f-27c038fd0e9e" xlink:to="loc_pbi_GainLossOnRevaluationOfIntercompanyLoans_019e69cd-1721-72b4-b956-0e57a433cb8b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_PaymentsForProceedsFromOtherOperatingActivities_019e69cd-1721-71f2-97e4-cabe8c043b4f" xlink:href="pbi-20260630.xsd#pbi_PaymentsForProceedsFromOtherOperatingActivities"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7939-a03f-27c038fd0e9e" xlink:to="loc_pbi_PaymentsForProceedsFromOtherOperatingActivities_019e69cd-1721-71f2-97e4-cabe8c043b4f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_019e69cd-1721-7476-9448-f85ca09a0aac" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="13" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7939-a03f-27c038fd0e9e" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_019e69cd-1721-7476-9448-f85ca09a0aac" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInFinanceReceivables_019e69cd-1721-7d76-8829-2aebea024ec8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInFinanceReceivables"/>
    <link:calculationArc order="14" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7939-a03f-27c038fd0e9e" xlink:to="loc_us-gaap_IncreaseDecreaseInFinanceReceivables_019e69cd-1721-7d76-8829-2aebea024ec8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_019e69cd-1721-7ca9-8da0-1d5436fef465" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="15" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7939-a03f-27c038fd0e9e" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_019e69cd-1721-7ca9-8da0-1d5436fef465" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_019e69cd-1721-77e3-8233-24e75bf0aa19" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
    <link:calculationArc order="16" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7939-a03f-27c038fd0e9e" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_019e69cd-1721-77e3-8233-24e75bf0aa19" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_019e69cd-1721-7d96-98c1-2299bcc7f5a1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:calculationArc order="17" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7939-a03f-27c038fd0e9e" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_019e69cd-1721-7d96-98c1-2299bcc7f5a1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_019e69cd-1721-728c-888f-8f62ce0af22e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <link:calculationArc order="18" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7939-a03f-27c038fd0e9e" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_019e69cd-1721-728c-888f-8f62ce0af22e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_019e69cd-1721-7adb-bfdc-27e1bad3b68f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <link:calculationArc order="19" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7939-a03f-27c038fd0e9e" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_019e69cd-1721-7adb-bfdc-27e1bad3b68f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e69cd-1721-7a3f-8c8d-5ba7aa1f5a43" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019e69cd-1721-7d86-935a-8515b7362f5d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e69cd-1721-7a3f-8c8d-5ba7aa1f5a43" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019e69cd-1721-7d86-935a-8515b7362f5d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireMarketableSecurities_019e69cd-1721-7264-903d-5ddfce382342" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireMarketableSecurities"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e69cd-1721-7a3f-8c8d-5ba7aa1f5a43" xlink:to="loc_us-gaap_PaymentsToAcquireMarketableSecurities_019e69cd-1721-7264-903d-5ddfce382342" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities_019e69cd-1721-701b-b120-a1aa8af9e5fa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e69cd-1721-7a3f-8c8d-5ba7aa1f5a43" xlink:to="loc_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities_019e69cd-1721-701b-b120-a1aa8af9e5fa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromShortTermInvestments_019e69cd-1721-7bc0-9cbc-2ba4577797a7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForProceedsFromShortTermInvestments"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e69cd-1721-7a3f-8c8d-5ba7aa1f5a43" xlink:to="loc_us-gaap_PaymentsForProceedsFromShortTermInvestments_019e69cd-1721-7bc0-9cbc-2ba4577797a7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_PaymentsForDebtorInPossessionFinancing_019e69cd-1721-7ae7-8b57-9a8e7ab364a5" xlink:href="pbi-20260630.xsd#pbi_PaymentsForDebtorInPossessionFinancing"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e69cd-1721-7a3f-8c8d-5ba7aa1f5a43" xlink:to="loc_pbi_PaymentsForDebtorInPossessionFinancing_019e69cd-1721-7ae7-8b57-9a8e7ab364a5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_019e69cd-1721-7505-ab23-5016a46237df" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e69cd-1721-7a3f-8c8d-5ba7aa1f5a43" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_019e69cd-1721-7505-ab23-5016a46237df" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_019e69cd-1721-7159-9276-711983b9ea1e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e69cd-1721-7a3f-8c8d-5ba7aa1f5a43" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_019e69cd-1721-7159-9276-711983b9ea1e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e69cd-1721-784f-8b0a-99ec86562559" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7592-8678-aa8bb8adc994" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e69cd-1721-784f-8b0a-99ec86562559" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e69cd-1721-7592-8678-aa8bb8adc994" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e69cd-1721-724f-a9ce-bf6c27565c82" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e69cd-1721-784f-8b0a-99ec86562559" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e69cd-1721-724f-a9ce-bf6c27565c82" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e69cd-1721-78c8-930e-db59d4b36d0d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e69cd-1721-784f-8b0a-99ec86562559" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e69cd-1721-78c8-930e-db59d4b36d0d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_019e69cd-1721-74b7-bc12-208174e50da3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e69cd-1721-784f-8b0a-99ec86562559" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_019e69cd-1721-74b7-bc12-208174e50da3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e69cd-1721-7f51-b66a-30a97754ba84" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit_019e69cd-1721-7246-bac1-5c2353089fd6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromLinesOfCredit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e69cd-1721-7f51-b66a-30a97754ba84" xlink:to="loc_us-gaap_ProceedsFromLinesOfCredit_019e69cd-1721-7246-bac1-5c2353089fd6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_019e69cd-1721-796c-b913-18819cdfda3e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e69cd-1721-7f51-b66a-30a97754ba84" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_019e69cd-1721-796c-b913-18819cdfda3e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfOtherLongTermDebt_019e69cd-1721-7a81-ad51-17437d7b7a74" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RepaymentsOfOtherLongTermDebt"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e69cd-1721-7f51-b66a-30a97754ba84" xlink:to="loc_us-gaap_RepaymentsOfOtherLongTermDebt_019e69cd-1721-7a81-ad51-17437d7b7a74" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarlyRepaymentOfSeniorDebt_019e69cd-1721-7a3f-a739-a6aa1ba41bec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarlyRepaymentOfSeniorDebt"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e69cd-1721-7f51-b66a-30a97754ba84" xlink:to="loc_us-gaap_EarlyRepaymentOfSeniorDebt_019e69cd-1721-7a3f-a739-a6aa1ba41bec" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_019e69cd-1721-7a2d-b623-2d6b20d88c48" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e69cd-1721-7f51-b66a-30a97754ba84" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_019e69cd-1721-7a2d-b623-2d6b20d88c48" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_ProceedsFromCustomerDeposits_019e69cd-1721-75c2-a0b5-094c4e56a2a2" xlink:href="pbi-20260630.xsd#pbi_ProceedsFromCustomerDeposits"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e69cd-1721-7f51-b66a-30a97754ba84" xlink:to="loc_pbi_ProceedsFromCustomerDeposits_019e69cd-1721-75c2-a0b5-094c4e56a2a2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_019e69cd-1721-77de-8edc-374270b99913" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromStockOptionsExercised"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e69cd-1721-7f51-b66a-30a97754ba84" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_019e69cd-1721-77de-8edc-374270b99913" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfEquity_019f7e49-4257-74fd-a35b-e6e4bfc42e98" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForRepurchaseOfEquity"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e69cd-1721-7f51-b66a-30a97754ba84" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfEquity_019f7e49-4257-74fd-a35b-e6e4bfc42e98" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_019f8d18-2ce5-7491-bc9a-b6734b88d564" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e69cd-1721-7f51-b66a-30a97754ba84" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_019f8d18-2ce5-7491-bc9a-b6734b88d564" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/RevenueDisaggregatesofRevenueDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#RevenueDisaggregatesofRevenueDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/RevenueDisaggregatesofRevenueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019e69cd-1721-7163-8584-e68b2a63eb37" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Revenues"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019e69cd-1721-7eae-a5ed-a3b393ea92af" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_019e69cd-1721-7163-8584-e68b2a63eb37" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019e69cd-1721-7eae-a5ed-a3b393ea92af" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseIncome_019e69cd-1721-70bb-80ef-cf7600660a75" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LeaseIncome"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_019e69cd-1721-7163-8584-e68b2a63eb37" xlink:to="loc_us-gaap_LeaseIncome_019e69cd-1721-70bb-80ef-cf7600660a75" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/SegmentInformationReportableSegmentsDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#SegmentInformationReportableSegmentsDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/SegmentInformationReportableSegmentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeInterestExpenseInterestIncomeIncomeTaxesExtraordinaryItemsNoncontrollingInterestsNet_019e69cd-1721-734d-9908-227fda495e78" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeInterestExpenseInterestIncomeIncomeTaxesExtraordinaryItemsNoncontrollingInterestsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_019e69cd-1721-7de7-b64a-ab53aee1aaf4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeInterestExpenseInterestIncomeIncomeTaxesExtraordinaryItemsNoncontrollingInterestsNet_019e69cd-1721-734d-9908-227fda495e78" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_019e69cd-1721-7de7-b64a-ab53aee1aaf4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_019e69cd-1721-778f-b2ec-ed98319aeffb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingExpenses"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeInterestExpenseInterestIncomeIncomeTaxesExtraordinaryItemsNoncontrollingInterestsNet_019e69cd-1721-734d-9908-227fda495e78" xlink:to="loc_us-gaap_OperatingExpenses_019e69cd-1721-778f-b2ec-ed98319aeffb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019e69cd-1721-7786-a83a-8c072edbbb1f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeInterestExpenseInterestIncomeIncomeTaxesExtraordinaryItemsNoncontrollingInterestsNet_019e69cd-1721-734d-9908-227fda495e78" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019e69cd-1721-7786-a83a-8c072edbbb1f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/SegmentInformationNetLossDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#SegmentInformationNetLossDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/SegmentInformationNetLossDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e69cd-1721-77c7-80af-8ec8fa33ae42" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeInterestExpenseInterestIncomeIncomeTaxesExtraordinaryItemsNoncontrollingInterestsNet_019e69cd-1721-762c-a289-2b8bcc82cb78" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeInterestExpenseInterestIncomeIncomeTaxesExtraordinaryItemsNoncontrollingInterestsNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e69cd-1721-77c7-80af-8ec8fa33ae42" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeInterestExpenseInterestIncomeIncomeTaxesExtraordinaryItemsNoncontrollingInterestsNet_019e69cd-1721-762c-a289-2b8bcc82cb78" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_019e69cd-1721-79ff-b963-0717105bab51" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e69cd-1721-77c7-80af-8ec8fa33ae42" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_019e69cd-1721-79ff-b963-0717105bab51" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_CorporateExpenses_019e69cd-1721-7986-8abb-a54b33fdce58" xlink:href="pbi-20260630.xsd#pbi_CorporateExpenses"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e69cd-1721-77c7-80af-8ec8fa33ae42" xlink:to="loc_pbi_CorporateExpenses_019e69cd-1721-7986-8abb-a54b33fdce58" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_019e69cd-1721-7dd4-b48a-509aae12fb4a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestructuringCharges"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e69cd-1721-77c7-80af-8ec8fa33ae42" xlink:to="loc_us-gaap_RestructuringCharges_019e69cd-1721-7dd4-b48a-509aae12fb4a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanCostOfProvidingSpecialOrContractualTerminationBenefitRecognizedDuringPeriod_019e69cd-1721-7a88-bc4f-b56014058466" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanCostOfProvidingSpecialOrContractualTerminationBenefitRecognizedDuringPeriod"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e69cd-1721-77c7-80af-8ec8fa33ae42" xlink:to="loc_us-gaap_DefinedBenefitPlanCostOfProvidingSpecialOrContractualTerminationBenefitRecognizedDuringPeriod_019e69cd-1721-7a88-bc4f-b56014058466" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019e69cd-1721-7866-9a81-ba05a3d1481c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e69cd-1721-77c7-80af-8ec8fa33ae42" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019e69cd-1721-7866-9a81-ba05a3d1481c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_019e69cd-1721-79de-89eb-4a129f1be437" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e69cd-1721-77c7-80af-8ec8fa33ae42" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_019e69cd-1721-79de-89eb-4a129f1be437" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_TransactionAndStrategicReviewCosts_019e69cd-1721-7832-941c-ae3cad50f4fa" xlink:href="pbi-20260630.xsd#pbi_TransactionAndStrategicReviewCosts"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e69cd-1721-77c7-80af-8ec8fa33ae42" xlink:to="loc_pbi_TransactionAndStrategicReviewCosts_019e69cd-1721-7832-941c-ae3cad50f4fa" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/EarningsperShareEPSDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#EarningsperShareEPSDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/EarningsperShareEPSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e69cd-1721-73d8-95f1-ab9a9164a52d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_019e69cd-1721-79f6-908b-9a9b9102e363" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e69cd-1721-73d8-95f1-ab9a9164a52d" xlink:to="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_019e69cd-1721-79f6-908b-9a9b9102e363" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019e69cd-1721-7404-9c78-b16cdb25134b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e69cd-1721-73d8-95f1-ab9a9164a52d" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019e69cd-1721-7404-9c78-b16cdb25134b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/InventoriesDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#InventoriesDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/InventoriesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019e69cd-1721-703f-a3c7-cf510f683c0d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryRawMaterialsNetOfReserves_019e69cd-1721-7157-8d2f-49941271a1ba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryRawMaterialsNetOfReserves"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019e69cd-1721-703f-a3c7-cf510f683c0d" xlink:to="loc_us-gaap_InventoryRawMaterialsNetOfReserves_019e69cd-1721-7157-8d2f-49941271a1ba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherInventoryNetOfReserves_019e69cd-1721-7567-a951-6bd99993f6de" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherInventoryNetOfReserves"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019e69cd-1721-703f-a3c7-cf510f683c0d" xlink:to="loc_us-gaap_OtherInventoryNetOfReserves_019e69cd-1721-7567-a951-6bd99993f6de" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_019e69cd-1721-748e-ba89-bfe1a4521caa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryFinishedGoodsNetOfReserves"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019e69cd-1721-703f-a3c7-cf510f683c0d" xlink:to="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_019e69cd-1721-748e-ba89-bfe1a4521caa" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesFinanceReceivablesDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#FinanceAssetsandLessorOperatingLeasesFinanceReceivablesDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesFinanceReceivablesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesReceivableNet_019e69cd-1721-7fea-8c17-3bfa3f11a936" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NotesReceivableNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableBeforeAllowanceForCreditLossAndFee_019e69cd-1721-737b-b0f2-d3084f051a61" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableBeforeAllowanceForCreditLossAndFee"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableNet_019e69cd-1721-7fea-8c17-3bfa3f11a936" xlink:to="loc_us-gaap_FinancingReceivableBeforeAllowanceForCreditLossAndFee_019e69cd-1721-737b-b0f2-d3084f051a61" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FinancingReceivableUnguaranteedResidualValues_019e69cd-1721-70e5-a5e0-ec7c26dcd88a" xlink:href="pbi-20260630.xsd#pbi_FinancingReceivableUnguaranteedResidualValues"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableNet_019e69cd-1721-7fea-8c17-3bfa3f11a936" xlink:to="loc_pbi_FinancingReceivableUnguaranteedResidualValues_019e69cd-1721-70e5-a5e0-ec7c26dcd88a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FinancingReceivableUnearnedIncome_019e69cd-1721-7d82-afc2-bc49a29d2174" xlink:href="pbi-20260630.xsd#pbi_FinancingReceivableUnearnedIncome"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableNet_019e69cd-1721-7fea-8c17-3bfa3f11a936" xlink:to="loc_pbi_FinancingReceivableUnearnedIncome_019e69cd-1721-7d82-afc2-bc49a29d2174" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_019e69cd-1721-73f1-97d3-48f1dc213d8d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableAllowanceForCreditLosses"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableNet_019e69cd-1721-7fea-8c17-3bfa3f11a936" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_019e69cd-1721-73f1-97d3-48f1dc213d8d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesSalestypeLeaseandLoanReceivablesDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#FinanceAssetsandLessorOperatingLeasesSalestypeLeaseandLoanReceivablesDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesSalestypeLeaseandLoanReceivablesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_019e69cd-1721-75c7-93e1-206b7f484b6a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedRemainderOfFiscalYear_019e69cd-1721-7ed7-8d84-3ca847471b8d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_019e69cd-1721-75c7-93e1-206b7f484b6a" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedRemainderOfFiscalYear_019e69cd-1721-7ed7-8d84-3ca847471b8d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextTwelveMonths_019e69cd-1721-74a2-8d43-e728b60e560c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_019e69cd-1721-75c7-93e1-206b7f484b6a" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextTwelveMonths_019e69cd-1721-74a2-8d43-e728b60e560c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears_019e69cd-1721-7760-bb4e-a42261ec3b50" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_019e69cd-1721-75c7-93e1-206b7f484b6a" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears_019e69cd-1721-7760-bb4e-a42261ec3b50" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears_019e69cd-1721-795d-afde-881054c848e0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_019e69cd-1721-75c7-93e1-206b7f484b6a" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears_019e69cd-1721-795d-afde-881054c848e0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears_019e69cd-1721-76f8-81bb-92713cf6e938" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_019e69cd-1721-75c7-93e1-206b7f484b6a" xlink:to="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears_019e69cd-1721-76f8-81bb-92713cf6e938" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_SalesTypeAndDirectFinancingLeasesLeaseReceivableToBeReceivedAfterYearFour_019e69cd-1721-72a7-a337-b5f11765c390" xlink:href="pbi-20260630.xsd#pbi_SalesTypeAndDirectFinancingLeasesLeaseReceivableToBeReceivedAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_019e69cd-1721-75c7-93e1-206b7f484b6a" xlink:to="loc_pbi_SalesTypeAndDirectFinancingLeasesLeaseReceivableToBeReceivedAfterYearFour_019e69cd-1721-72a7-a337-b5f11765c390" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FinancingReceivablePaymentsToBeReceived_019e69cd-1721-7c36-8e26-9a0aa6d77490" xlink:href="pbi-20260630.xsd#pbi_FinancingReceivablePaymentsToBeReceived"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FinancingReceivablePaymentsToBeReceivedRemainderOfFiscalYear_019e69cd-1721-79b0-9fab-daac9f802264" xlink:href="pbi-20260630.xsd#pbi_FinancingReceivablePaymentsToBeReceivedRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_pbi_FinancingReceivablePaymentsToBeReceived_019e69cd-1721-7c36-8e26-9a0aa6d77490" xlink:to="loc_pbi_FinancingReceivablePaymentsToBeReceivedRemainderOfFiscalYear_019e69cd-1721-79b0-9fab-daac9f802264" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FinancingReceivablePaymentsToBeReceivedNextTwelveMonths_019e69cd-1721-76a7-8326-f6b96ad90d11" xlink:href="pbi-20260630.xsd#pbi_FinancingReceivablePaymentsToBeReceivedNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_pbi_FinancingReceivablePaymentsToBeReceived_019e69cd-1721-7c36-8e26-9a0aa6d77490" xlink:to="loc_pbi_FinancingReceivablePaymentsToBeReceivedNextTwelveMonths_019e69cd-1721-76a7-8326-f6b96ad90d11" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FinancingReceivablePaymentsToBeReceivedTwoYears_019e69cd-1721-7320-a51c-d43b6998ae7e" xlink:href="pbi-20260630.xsd#pbi_FinancingReceivablePaymentsToBeReceivedTwoYears"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_pbi_FinancingReceivablePaymentsToBeReceived_019e69cd-1721-7c36-8e26-9a0aa6d77490" xlink:to="loc_pbi_FinancingReceivablePaymentsToBeReceivedTwoYears_019e69cd-1721-7320-a51c-d43b6998ae7e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FinancingReceivablePaymentsToBeReceivedThreeYears_019e69cd-1721-7cf9-88a5-b7e1843742dd" xlink:href="pbi-20260630.xsd#pbi_FinancingReceivablePaymentsToBeReceivedThreeYears"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_pbi_FinancingReceivablePaymentsToBeReceived_019e69cd-1721-7c36-8e26-9a0aa6d77490" xlink:to="loc_pbi_FinancingReceivablePaymentsToBeReceivedThreeYears_019e69cd-1721-7cf9-88a5-b7e1843742dd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FinancingReceivablePaymentsToBeReceivedFourYears_019e69cd-1721-7e1e-ba9c-6e50d5a8aa5a" xlink:href="pbi-20260630.xsd#pbi_FinancingReceivablePaymentsToBeReceivedFourYears"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_pbi_FinancingReceivablePaymentsToBeReceived_019e69cd-1721-7c36-8e26-9a0aa6d77490" xlink:to="loc_pbi_FinancingReceivablePaymentsToBeReceivedFourYears_019e69cd-1721-7e1e-ba9c-6e50d5a8aa5a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FinancingReceivablePaymentsToBeReceivedAfterYearFour_019e69cd-1721-7bd6-8654-4b3be1682d39" xlink:href="pbi-20260630.xsd#pbi_FinancingReceivablePaymentsToBeReceivedAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_pbi_FinancingReceivablePaymentsToBeReceived_019e69cd-1721-7c36-8e26-9a0aa6d77490" xlink:to="loc_pbi_FinancingReceivablePaymentsToBeReceivedAfterYearFour_019e69cd-1721-7bd6-8654-4b3be1682d39" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesWriteOffsDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#FinanceAssetsandLessorOperatingLeasesWriteOffsDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesWriteOffsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_019e69cd-1721-7921-8921-ad0caf44b2fe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff_019e69cd-1721-728e-93c7-ce34ff83af14" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_019e69cd-1721-7921-8921-ad0caf44b2fe" xlink:to="loc_us-gaap_FinancingReceivableYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff_019e69cd-1721-728e-93c7-ce34ff83af14" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff_019e69cd-1721-762e-8629-c9e1db5d958b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_019e69cd-1721-7921-8921-ad0caf44b2fe" xlink:to="loc_us-gaap_FinancingReceivableYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff_019e69cd-1721-762e-8629-c9e1db5d958b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableYearOneOriginatedCurrentFiscalYearWriteoff_019e69cd-1721-7126-a001-eb60eb416ffe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableYearOneOriginatedCurrentFiscalYearWriteoff"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_019e69cd-1721-7921-8921-ad0caf44b2fe" xlink:to="loc_us-gaap_FinancingReceivableYearOneOriginatedCurrentFiscalYearWriteoff_019e69cd-1721-7126-a001-eb60eb416ffe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff_019e69cd-1721-73a5-93fc-9aa8c2c47631" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_019e69cd-1721-7921-8921-ad0caf44b2fe" xlink:to="loc_us-gaap_FinancingReceivableYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff_019e69cd-1721-73a5-93fc-9aa8c2c47631" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff_019e69cd-1721-7a66-86f1-469c015e41a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_019e69cd-1721-7921-8921-ad0caf44b2fe" xlink:to="loc_us-gaap_FinancingReceivableOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff_019e69cd-1721-7a66-86f1-469c015e41a9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff_019e69cd-1721-7c4c-988f-eeab514097ae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_019e69cd-1721-7921-8921-ad0caf44b2fe" xlink:to="loc_us-gaap_FinancingReceivableYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff_019e69cd-1721-7c4c-988f-eeab514097ae" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesCreditQualityDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#FinanceAssetsandLessorOperatingLeasesCreditQualityDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesCreditQualityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesReceivableGross_019e69cd-1722-7416-ab72-376d884b1325" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NotesReceivableGross"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableOriginatedInCurrentFiscalYear_019e69cd-1722-7bf7-b90b-95f292634728" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableOriginatedInCurrentFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableGross_019e69cd-1722-7416-ab72-376d884b1325" xlink:to="loc_us-gaap_FinancingReceivableOriginatedInCurrentFiscalYear_019e69cd-1722-7bf7-b90b-95f292634728" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear_019e69cd-1722-7cf3-8e14-3e437a37f418" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableGross_019e69cd-1722-7416-ab72-376d884b1325" xlink:to="loc_us-gaap_FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear_019e69cd-1722-7cf3-8e14-3e437a37f418" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear_019e69cd-1722-7453-9b23-ee9cd64655bf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableGross_019e69cd-1722-7416-ab72-376d884b1325" xlink:to="loc_us-gaap_FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear_019e69cd-1722-7453-9b23-ee9cd64655bf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear_019e69cd-1722-702a-8049-9951c84b683d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableGross_019e69cd-1722-7416-ab72-376d884b1325" xlink:to="loc_us-gaap_FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear_019e69cd-1722-702a-8049-9951c84b683d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear_019e69cd-1722-72c6-9514-e744f695896b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableGross_019e69cd-1722-7416-ab72-376d884b1325" xlink:to="loc_us-gaap_FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear_019e69cd-1722-72c6-9514-e744f695896b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear_019e69cd-1722-7167-b838-94e41a92ff3c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableGross_019e69cd-1722-7416-ab72-376d884b1325" xlink:to="loc_us-gaap_FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear_019e69cd-1722-7167-b838-94e41a92ff3c" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesLeaseIncomeDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#FinanceAssetsandLessorOperatingLeasesLeaseIncomeDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesLeaseIncomeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeLeaseLeaseIncome_019e69cd-1722-7c9f-b080-d7838f186797" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SalesTypeLeaseLeaseIncome"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeLeaseSellingProfitLoss_019e69cd-1722-7246-88de-7f01bf7fce8a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SalesTypeLeaseSellingProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeLeaseLeaseIncome_019e69cd-1722-7c9f-b080-d7838f186797" xlink:to="loc_us-gaap_SalesTypeLeaseSellingProfitLoss_019e69cd-1722-7246-88de-7f01bf7fce8a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeLeaseInterestIncome_019e69cd-1722-7c3b-a6ed-91c753aeafe6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SalesTypeLeaseInterestIncome"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SalesTypeLeaseLeaseIncome_019e69cd-1722-7c9f-b080-d7838f186797" xlink:to="loc_us-gaap_SalesTypeLeaseInterestIncome_019e69cd-1722-7c3b-a6ed-91c753aeafe6" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesOperatingLeasesDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#FinanceAssetsandLessorOperatingLeasesOperatingLeasesDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FinanceAssetsandLessorOperatingLeasesOperatingLeasesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019e69cd-1722-7678-beb8-e7099f957640" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceived"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear_019e69cd-1722-786f-ab98-7959bd8b6a98" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019e69cd-1722-7678-beb8-e7099f957640" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear_019e69cd-1722-786f-ab98-7959bd8b6a98" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths_019e69cd-1722-7924-bb48-76dbf0efb5c2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019e69cd-1722-7678-beb8-e7099f957640" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths_019e69cd-1722-7924-bb48-76dbf0efb5c2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedTwoYears_019e69cd-1722-7a82-9efd-1fbf49f98262" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedTwoYears"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019e69cd-1722-7678-beb8-e7099f957640" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedTwoYears_019e69cd-1722-7a82-9efd-1fbf49f98262" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedThreeYears_019e69cd-1722-7699-8ebf-5bf0249eda57" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedThreeYears"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019e69cd-1722-7678-beb8-e7099f957640" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedThreeYears_019e69cd-1722-7699-8ebf-5bf0249eda57" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedFourYears_019e69cd-1722-7200-9723-d30eb83f89a8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedFourYears"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019e69cd-1722-7678-beb8-e7099f957640" xlink:to="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceivedFourYears_019e69cd-1722-7200-9723-d30eb83f89a8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_LessorOperatingLeasePaymentToBeReceivedAfterYearFour_019e69cd-1722-7374-bde4-a716083710ca" xlink:href="pbi-20260630.xsd#pbi_LessorOperatingLeasePaymentToBeReceivedAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LessorOperatingLeasePaymentsToBeReceived_019e69cd-1722-7678-beb8-e7099f957640" xlink:to="loc_pbi_LessorOperatingLeasePaymentToBeReceivedAfterYearFour_019e69cd-1722-7374-bde4-a716083710ca" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/IntangibleAssetsandGoodwillIntangibleAssetsDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#IntangibleAssetsandGoodwillIntangibleAssetsDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/IntangibleAssetsandGoodwillIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e69cd-1722-79c9-bb16-428cb59e5eb6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019e69cd-1722-746b-8bc0-6238177b9d56" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e69cd-1722-79c9-bb16-428cb59e5eb6" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019e69cd-1722-746b-8bc0-6238177b9d56" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019e69cd-1722-7b9e-b38c-821419b20dba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e69cd-1722-79c9-bb16-428cb59e5eb6" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019e69cd-1722-7b9e-b38c-821419b20dba" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/IntangibleAssetsandGoodwillFutureAmortizationExpenseDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#IntangibleAssetsandGoodwillFutureAmortizationExpenseDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/IntangibleAssetsandGoodwillFutureAmortizationExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e69cd-1722-79e8-b4b8-51dc7e9097ed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_019e69cd-1722-7b28-9c0d-8c0f8a7f4e80" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e69cd-1722-79e8-b4b8-51dc7e9097ed" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_019e69cd-1722-7b28-9c0d-8c0f8a7f4e80" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_019e69cd-1722-72af-9654-155eaad863c9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e69cd-1722-79e8-b4b8-51dc7e9097ed" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_019e69cd-1722-72af-9654-155eaad863c9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_019e69cd-1722-7e68-80c7-51060c58da70" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e69cd-1722-79e8-b4b8-51dc7e9097ed" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_019e69cd-1722-7e68-80c7-51060c58da70" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_019e69cd-1722-7ae1-96b7-e81494abad25" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e69cd-1722-79e8-b4b8-51dc7e9097ed" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_019e69cd-1722-7ae1-96b7-e81494abad25" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_019e69cd-1722-7cba-93c4-dba3cf350405" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e69cd-1722-79e8-b4b8-51dc7e9097ed" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_019e69cd-1722-7cba-93c4-dba3cf350405" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour_019e69cd-1722-7771-98b0-399732e8439e" xlink:href="pbi-20260630.xsd#pbi_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e69cd-1722-79e8-b4b8-51dc7e9097ed" xlink:to="loc_pbi_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour_019e69cd-1722-7771-98b0-399732e8439e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FairValueMeasurementsandDerivativeInstrumentsAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#FairValueMeasurementsandDerivativeInstrumentsAssetsandLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FairValueMeasurementsandDerivativeInstrumentsAssetsandLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosure_019e69cd-1722-7523-8bc1-2a117a7f7cde" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_DeferredCompensationObligationFairValueDisclosure_019e69cd-1722-7774-9a48-a5dfbd0be89b" xlink:href="pbi-20260630.xsd#pbi_DeferredCompensationObligationFairValueDisclosure"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosure_019e69cd-1722-7523-8bc1-2a117a7f7cde" xlink:to="loc_pbi_DeferredCompensationObligationFairValueDisclosure_019e69cd-1722-7774-9a48-a5dfbd0be89b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_019e69cd-1722-7dd0-8203-eb23008161c3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_019e69cd-1722-7063-8fbe-6b2f3b188916" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_019e69cd-1722-7dd0-8203-eb23008161c3" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_019e69cd-1722-7063-8fbe-6b2f3b188916" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_DebtSecuritiesAvailableForSaleAndCashEquivalents_019e69cd-1722-7de5-881f-7de119f0e904" xlink:href="pbi-20260630.xsd#pbi_DebtSecuritiesAvailableForSaleAndCashEquivalents"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_019e69cd-1722-7dd0-8203-eb23008161c3" xlink:to="loc_pbi_DebtSecuritiesAvailableForSaleAndCashEquivalents_019e69cd-1722-7de5-881f-7de119f0e904" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019e69cd-1722-7931-916b-455560daba96" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_019e69cd-1722-7dd0-8203-eb23008161c3" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019e69cd-1722-7931-916b-455560daba96" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FairValueMeasurementsandDerivativeInstrumentsAvailableforsaleSecuritiesDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#FairValueMeasurementsandDerivativeInstrumentsAvailableforsaleSecuritiesDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FairValueMeasurementsandDerivativeInstrumentsAvailableforsaleSecuritiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_019e69cd-1722-7968-8d51-291c42413e30" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019e69cd-1722-735d-a1cb-04c1cf1f589c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_019e69cd-1722-7968-8d51-291c42413e30" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019e69cd-1722-735d-a1cb-04c1cf1f589c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_019e69cd-1722-7ba5-ba87-63bac433ca10" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_019e69cd-1722-7968-8d51-291c42413e30" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_019e69cd-1722-7ba5-ba87-63bac433ca10" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_019e69cd-1722-79a0-8235-332fc43453b1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_019e69cd-1722-7968-8d51-291c42413e30" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_019e69cd-1722-79a0-8235-332fc43453b1" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FairValueMeasuresandDerivativeInstrumentsFairValueofAvailableforsaleSecuritiesDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#FairValueMeasuresandDerivativeInstrumentsFairValueofAvailableforsaleSecuritiesDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FairValueMeasuresandDerivativeInstrumentsFairValueofAvailableforsaleSecuritiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019e69cd-1722-75fb-9bba-92cbc4fffb30" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent_019e69cd-1722-782c-b27f-2b939abb20b1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019e69cd-1722-75fb-9bba-92cbc4fffb30" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent_019e69cd-1722-782c-b27f-2b939abb20b1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent_019e69cd-1722-7ef5-841a-70e0db58201a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019e69cd-1722-75fb-9bba-92cbc4fffb30" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent_019e69cd-1722-7ef5-841a-70e0db58201a" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FairValueMeasurementsandDerivativeInstrumentsAvailableforsaleSecuritiesMaturitiesDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#FairValueMeasurementsandDerivativeInstrumentsAvailableforsaleSecuritiesMaturitiesDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FairValueMeasurementsandDerivativeInstrumentsAvailableforsaleSecuritiesMaturitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_019e69cd-1722-74b2-978c-da2390d86ac9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_019e69cd-1722-7010-92e2-da59e2d38b36" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_019e69cd-1722-74b2-978c-da2390d86ac9" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_019e69cd-1722-7010-92e2-da59e2d38b36" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost_019e69cd-1722-791b-b584-629455de89ff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_019e69cd-1722-74b2-978c-da2390d86ac9" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost_019e69cd-1722-791b-b584-629455de89ff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost_019e69cd-1722-7e66-97fd-44b5db0b6947" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_019e69cd-1722-74b2-978c-da2390d86ac9" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost_019e69cd-1722-7e66-97fd-44b5db0b6947" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost_019e69cd-1722-709e-b85c-08d456c49c3d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_019e69cd-1722-74b2-978c-da2390d86ac9" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost_019e69cd-1722-709e-b85c-08d456c49c3d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019e69cd-1722-71cc-b5bc-1b5aa7210d8d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_019e69cd-1722-7103-ad52-42b35fa739bd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019e69cd-1722-71cc-b5bc-1b5aa7210d8d" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_019e69cd-1722-7103-ad52-42b35fa739bd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_019e69cd-1722-79b0-a521-da1645af35cd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019e69cd-1722-71cc-b5bc-1b5aa7210d8d" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_019e69cd-1722-79b0-a521-da1645af35cd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue_019e69cd-1722-7855-ba10-1205ebcd170f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019e69cd-1722-71cc-b5bc-1b5aa7210d8d" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue_019e69cd-1722-7855-ba10-1205ebcd170f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue_019e69cd-1722-7179-be07-a2bd21631bee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_019e69cd-1722-71cc-b5bc-1b5aa7210d8d" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue_019e69cd-1722-7179-be07-a2bd21631bee" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FairValueMeasurementsandDerivativeInstrumentsCarryingValueofInvestmentsontheBalanceSheetDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#FairValueMeasurementsandDerivativeInstrumentsCarryingValueofInvestmentsontheBalanceSheetDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FairValueMeasurementsandDerivativeInstrumentsCarryingValueofInvestmentsontheBalanceSheetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss_019fa928-ab9c-767d-b300-d6de4ce3b8db" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLossCurrent_019fa928-ab9c-7249-92dd-936fb174465e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLossCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss_019fa928-ab9c-767d-b300-d6de4ce3b8db" xlink:to="loc_us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLossCurrent_019fa928-ab9c-7249-92dd-936fb174465e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLossNoncurrent_019fa928-ab9c-7a86-9451-e5770f952ad1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLossNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss_019fa928-ab9c-767d-b300-d6de4ce3b8db" xlink:to="loc_us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLossNoncurrent_019fa928-ab9c-7a86-9451-e5770f952ad1" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/FairValueMeasurementsandDerivativeInstrumentsHeldtoMaturitiesDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#FairValueMeasurementsandDerivativeInstrumentsHeldtoMaturitiesDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/FairValueMeasurementsandDerivativeInstrumentsHeldtoMaturitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue_019e69cd-1722-7c7d-aced-5bac294bf296" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue_019e69cd-1722-7b72-8340-1fba6be79b0f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue_019e69cd-1722-7c7d-aced-5bac294bf296" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue_019e69cd-1722-7b72-8340-1fba6be79b0f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_019e69cd-1722-757a-9e6a-83e693c4a310" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue_019e69cd-1722-7c7d-aced-5bac294bf296" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_019e69cd-1722-757a-9e6a-83e693c4a310" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue_019e69cd-1722-7820-b2c3-e96dd12edd67" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue_019e69cd-1722-7c7d-aced-5bac294bf296" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue_019e69cd-1722-7820-b2c3-e96dd12edd67" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_019e69cd-1722-7c70-90af-2659bb4e9863" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount_019e69cd-1722-7385-9b28-2867affe9bc0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_019e69cd-1722-7c70-90af-2659bb4e9863" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount_019e69cd-1722-7385-9b28-2867affe9bc0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount_019e69cd-1722-7c25-8ca4-cec160a7509c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_019e69cd-1722-7c70-90af-2659bb4e9863" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount_019e69cd-1722-7c25-8ca4-cec160a7509c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount_019e69cd-1722-719a-8e53-298833e9022c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_019e69cd-1722-7c70-90af-2659bb4e9863" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount_019e69cd-1722-719a-8e53-298833e9022c" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/RestructuringChargesComponentsofRestructuringExpenseDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#RestructuringChargesComponentsofRestructuringExpenseDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/RestructuringChargesComponentsofRestructuringExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_019e69cd-1722-7d12-867e-3e1b40d570e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestructuringCharges"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeveranceCosts1_019e69cd-1722-7fc7-b071-964760ffe97d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SeveranceCosts1"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_RestructuringCharges_019e69cd-1722-7d12-867e-3e1b40d570e7" xlink:to="loc_us-gaap_SeveranceCosts1_019e69cd-1722-7fc7-b071-964760ffe97d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessExitCosts1_019e69cd-1722-722c-8f5f-00643c1b3b0c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessExitCosts1"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_RestructuringCharges_019e69cd-1722-7d12-867e-3e1b40d570e7" xlink:to="loc_us-gaap_BusinessExitCosts1_019e69cd-1722-722c-8f5f-00643c1b3b0c" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/DebtScheduleofDebtDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#DebtScheduleofDebtDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/DebtScheduleofDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019e69cd-17ea-75a8-819e-1df9baf3cab6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_019e69cd-17ea-74eb-827c-a41fecb41e8d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019e69cd-17ea-75a8-819e-1df9baf3cab6" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_019e69cd-17ea-74eb-827c-a41fecb41e8d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_019e69cd-17ea-7ceb-b225-6b62480f4af7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019e69cd-17ea-75a8-819e-1df9baf3cab6" xlink:to="loc_us-gaap_LongTermDebtCurrent_019e69cd-17ea-7ceb-b225-6b62480f4af7" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/DebtScheduleofDebtDetails_1" xlink:type="simple" xlink:href="pbi-20260630.xsd#DebtScheduleofDebtDetails_1"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/DebtScheduleofDebtDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019e69cd-17ea-70cc-af35-045e0641b446" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_019e69cd-17ea-7c39-9921-e491be89e9b9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019e69cd-17ea-70cc-af35-045e0641b446" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_019e69cd-17ea-7c39-9921-e491be89e9b9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019e69cd-17ea-74e5-9ac0-249f8b8c4dae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019e69cd-17ea-70cc-af35-045e0641b446" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019e69cd-17ea-74e5-9ac0-249f8b8c4dae" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/PensionsandOtherBenefitProgramsComponentsofNetPeriodicBenefitIncomeCostDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#PensionsandOtherBenefitProgramsComponentsofNetPeriodicBenefitIncomeCostDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/PensionsandOtherBenefitProgramsComponentsofNetPeriodicBenefitIncomeCostDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e69cd-17ea-73e0-8181-56bd760b209b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_019e69cd-17ea-7dd8-957d-9b79e9e33476" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanServiceCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e69cd-17ea-73e0-8181-56bd760b209b" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_019e69cd-17ea-7dd8-957d-9b79e9e33476" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_019e69cd-17ea-77f4-96b6-b3a1536669a3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanInterestCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e69cd-17ea-73e0-8181-56bd760b209b" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_019e69cd-17ea-77f4-96b6-b3a1536669a3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_019e69cd-17ea-7bc6-b369-1dd2d1725a76" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e69cd-17ea-73e0-8181-56bd760b209b" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_019e69cd-17ea-7bc6-b369-1dd2d1725a76" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_019e69cd-17ea-768d-adf0-b1928b36dc61" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e69cd-17ea-73e0-8181-56bd760b209b" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_019e69cd-17ea-768d-adf0-b1928b36dc61" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_019e69cd-17ea-7ab5-aa57-c468325cc3a6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e69cd-17ea-73e0-8181-56bd760b209b" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_019e69cd-17ea-7ab5-aa57-c468325cc3a6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1_019f4b6e-4b8f-77ab-99d3-5ff3e7d6a699" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e69cd-17ea-73e0-8181-56bd760b209b" xlink:to="loc_us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1_019f4b6e-4b8f-77ab-99d3-5ff3e7d6a699" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/AccumulatedOtherComprehensiveLossChangesDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#AccumulatedOtherComprehensiveLossChangesDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/AccumulatedOtherComprehensiveLossChangesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e69cd-17ea-79e7-a75d-e7b666c04d40" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OciBeforeReclassificationsNetOfTaxAttributableToParent_019e69cd-17ea-774f-8676-681089ca3ff1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OciBeforeReclassificationsNetOfTaxAttributableToParent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e69cd-17ea-79e7-a75d-e7b666c04d40" xlink:to="loc_us-gaap_OciBeforeReclassificationsNetOfTaxAttributableToParent_019e69cd-17ea-774f-8676-681089ca3ff1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent_019e69cd-17ea-74fe-882c-1ddd73aaeddf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e69cd-17ea-79e7-a75d-e7b666c04d40" xlink:to="loc_us-gaap_ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent_019e69cd-17ea-74fe-882c-1ddd73aaeddf" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.pb.com/role/SupplementalFinancialStatementInformationOtherExpenseIncomeDetails" xlink:type="simple" xlink:href="pbi-20260630.xsd#SupplementalFinancialStatementInformationOtherExpenseIncomeDetails"/>
  <link:calculationLink xlink:role="http://www.pb.com/role/SupplementalFinancialStatementInformationOtherExpenseIncomeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonrecurringIncomeExpense_019e69cd-17ea-73cd-a41b-553205e7553c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNonrecurringIncomeExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019e69cd-17ea-7168-8f6f-37646e483e50" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonrecurringIncomeExpense_019e69cd-17ea-73cd-a41b-553205e7553c" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_019e69cd-17ea-7168-8f6f-37646e483e50" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_pbi_DisposalGroupIncludingDiscontinuedOperationTransactionCosts_019e69cd-17ea-7e6b-b606-74fba60fabb6" xlink:href="pbi-20260630.xsd#pbi_DisposalGroupIncludingDiscontinuedOperationTransactionCosts"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonrecurringIncomeExpense_019e69cd-17ea-73cd-a41b-553205e7553c" xlink:to="loc_pbi_DisposalGroupIncludingDiscontinuedOperationTransactionCosts_019e69cd-17ea-7e6b-b606-74fba60fabb6" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
