Mortgage Calculator

This calculator starts with four inputs that most home shoppers already have in mind: home price, down payment, interest rate, and loan term. It subtracts the down payment from the home price to estimate the amount being financed. That financed amount is then amortized over the selected term using the interest rate you enter. The result is an estimated monthly principal-and-interest payment.

For US borrowers, this is often the cleanest first step in the mortgage planning process because it isolates the debt payment from the rest of the housing budget. That makes it easier to compare a 15-year loan with a 30-year loan, or to see whether raising your down payment meaningfully improves the monthly number before you move on to taxes, insurance, and other homeownership costs.

The result is the estimated monthly principal-and-interest portion of a fixed-rate mortgage payment. Principal is the amount that reduces the loan balance. Interest is the borrowing cost charged by the lender. Early in a typical mortgage, a larger share of the payment goes to interest; later in the loan, more of each payment goes toward principal reduction.

This number is useful as a decision-making anchor, not as a final housing budget. If the calculator shows a payment that already feels stretched, that is often a sign to test a lower purchase price, a larger down payment, or a different term before moving deeper into the buying process. For broader planning, compare the result with the payment range you might also see on the auto loan calculator and the savings pace on the savings goal calculator.

This page deliberately keeps the estimate narrow. It does not include property taxes, homeowners insurance, mortgage insurance, HOA dues, closing costs, prepaid items, discount points, or lender fees. In many US markets, those items can significantly change the real monthly amount that appears on a mortgage statement.

It also assumes a fixed-rate structure and regular payments across the full term. Adjustable-rate mortgages, buydowns, escrow fluctuations, and local tax changes are outside the scope of this tool. The calculator is educational only and does not provide financial, tax, legal, or lending advice.

This calculator is most useful when you are testing affordability ranges, comparing loan scenarios from online listings, or deciding how a larger down payment might change the monthly payment. It is also helpful before speaking with a lender because it gives you a simple framework for evaluating rate quotes instead of reacting only to the sticker price of the home.

It can also support longer-term planning. If your expected payment still feels too high, you may want to build a stronger down payment runway first with the savings goal calculator, or review broader retirement tradeoffs with the retirement calculator before committing cash to a home purchase.