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Finance

Mortgage Calculator

Estimate your monthly mortgage payment.

% APR
years
Monthly payment
Total paid
Total interest

Amortization schedule

How this calculator works

Uses the standard loan amortization formula. For a full picture, also budget for property tax, insurance, and HOA fees, which this estimate doesn't include.

Formula

payment = P × [r(1+r)^n] / [(1+r)^n − 1]

Frequently asked questions

Does this include property tax and insurance?

No — this estimates principal and interest only. Add your local property tax, homeowners insurance, and any HOA fees separately for your total monthly housing cost.

How much does a lower interest rate actually save?

Even a 0.5% rate difference can save tens of thousands of dollars over a 30-year loan — try the calculator with a slightly different rate to see the exact impact on your amortization schedule.

What's the difference between a 15-year and 30-year mortgage?

A 15-year loan has higher monthly payments but dramatically less total interest paid; a 30-year loan has lower payments but more than double the total interest over the life of the loan.

Why does the amortization table show more interest in early years?

Interest is calculated on the remaining balance each month, so when the balance is highest — at the start — interest makes up the largest share of each payment.