Home & Property
Most used

Mortgage Calculator

Enter a home price, down payment and rate to see your full monthly payment — principal, interest, property tax and insurance — plus how much interest you'll pay over the life of the loan.

Your numbers
$
$

20% avoids most PMI.

6.5%
%
$
Over time

Use Left and Right Arrow, Home, or End to inspect data points.

$320k$160k$001530

Estimates only — not financial advice. They produce estimates based on the figures you enter and do not account for every fee, tax or change in rate.

Sources & assumptions

Formula 2026.07.18
Page updated 2026-07-18

Read the full methodology
  • The result is a deterministic estimate from the inputs shown on this page.
  • Fees, taxes and real-world terms not represented by an input are excluded.
  • Confirm material decisions against original documents or a qualified professional.
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How the mortgage calculation works

Your principal and interest payment comes from the standard amortized-loan formula: the loan amount, the monthly rate, and the number of payments determine a fixed payment that pays the loan off exactly at the end of the term.

Early payments are mostly interest; later payments are mostly principal. The balance chart above shows how slowly the balance falls at first, then accelerates.

Lowering your payment

Three levers move your payment: a larger down payment (less to borrow), a lower rate (shop lenders and consider points), or a longer term (lower payment but more total interest). Use the related calculators to test refinancing or making extra payments.

Frequently asked questions