Mortgage Calculator

Use this mortgage calculator to get instant, private, browser-based results. Estimate payments, payoff timing, and interest costs before you borrow or refinance.

How it works

Monthly payment = principal, rate, and term converted into a recurring payment

Worked example

Example: enter a realistic starting value, adjust the rate, term, quantity, or target field, then compare the updated result against your current plan before taking action.

Frequently asked questions

Is the Mortgage Calculator free?

Yes. The Mortgage Calculator is free to use, works in your browser, and does not require an account.

How accurate is the Mortgage Calculator?

It uses standard formulas and clear assumptions. Treat results as estimates and verify important financial, tax, health, or legal decisions with a qualified professional.

Can I change the numbers?

Yes. Replace any default input with your own numbers and the result updates as you edit.