Instant monthly payment estimate. Nothing leaves your browser.
Principal and interest only. Property taxes, insurance, and fees are not included.
A mortgage calculator estimates the monthly payment on a home loan based on the purchase price, down payment, interest rate, and loan term. Each payment is split into two parts: principal, which reduces the amount you borrowed, and interest, which is the lender's fee for the loan. Early payments are mostly interest, while later payments are mostly principal. Over the full term, the interest paid can add up to a large fraction of the original loan, which is why comparing rates and terms before buying matters so much.
This calculator runs 100% client-side in your browser. Your home price, down payment, interest rate, and term are never uploaded, transmitted, or stored on a server — no account, no signup, no tracking. Financial details are highly sensitive, and keeping the math on your own device means your numbers stay private. Results are estimates for planning only and exclude taxes, insurance, HOA fees, and closing costs. Always confirm final figures with your lender.