justyourcalculatorMortgage Calculator
Your monthly payment, total interest and payoff date, with every cost included.
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Mortgage Calculator
Monthly payment with taxes, insurance and PMI
Only with less than 20% down; stops at 80% of the price.
Maintenance, utilities or anything else you want in the total.
Paid with every 12th payment.
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How the mortgage calculator works
The monthly principal and interest payment uses the standard amortization formula: M = P × r(1 + r)^n / ((1 + r)^n - 1), where P is the loan amount, r the monthly rate (annual rate / 12) and n the number of payments.
Property tax, insurance, PMI, HOA and other costs are added on top, because most lenders collect them with the payment through an escrow account. Taxes and the other costs grow each year by the increase you set, which matters over a 30-year loan.
Extra payments go straight to principal. The biweekly option pays half the monthly payment every two weeks: 26 half payments equal 13 full payments a year, which is why the loan finishes early.
Using and checking your result
Published by JustYourCalculator. Check the units and assumptions above, and compare a known example before relying on the output. Calculations use browser arithmetic and may round displayed values.
This is an educational estimate, not a lender quote, tax filing calculation or investment recommendation. Actual costs depend on current rules, fees and your circumstances. Verify important decisions with official sources and a qualified adviser.
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Primary references and further reading
Reference links help you check assumptions; they do not mean the publisher has reviewed or endorsed this calculator.