Mortgage Payment Calculator

Calculate your monthly mortgage payment instantly. Enter loan amount, interest rate, and term to see your estimated payment. Free and easy to use.

About this tool

A mortgage payment calculator helps you estimate how much you will pay each month when you take out a home loan. Understanding your monthly obligation before committing to a mortgage is one of the most important steps in the home-buying process, and this tool makes that estimation quick and straightforward. The monthly mortgage payment is determined by three core factors: the principal (the amount you actually borrow after your down payment), the interest rate, and the loan term. The standard formula used is based on amortization, which means each monthly payment covers both a portion of the interest and a portion of the principal. In the early years of a mortgage, a larger share of each payment goes toward interest. Over time, as the principal decreases, more of each payment is applied to the principal itself. The mathematical formula behind the calculation is: **M = P × [r(1+r)^n] / [(1+r)^n − 1]**, where M is the monthly payment, P is the loan principal, r is the monthly interest rate (annual rate divided by 12), and n is the total number of payments (years multiplied by 12). This formula ensures the loan is fully paid off by the end of the term through equal monthly payments. Your down payment plays a significant role in determining your monthly cost. A larger down payment reduces the principal, which lowers both the monthly payment and the total interest paid over the life of the loan. Many lenders also require private mortgage insurance (PMI) if your down payment is less than 20% of the home's purchase price, which would add to your actual monthly costs — something this calculator does not include. It is also worth noting that the figure produced by this tool represents only the principal and interest portion of a mortgage payment. In practice, most homeowners also pay property taxes, homeowner's insurance, and potentially HOA fees, often bundled into a single monthly payment through an escrow account managed by the lender. These additional costs can meaningfully increase your total monthly housing expense. When comparing loan options, pay close attention to both the monthly payment and the total interest paid over the full term. A 15-year mortgage typically carries a lower interest rate and builds equity much faster, but the monthly payment will be noticeably higher than a 30-year loan. Choosing the right term depends on your financial situation, long-term goals, and how long you plan to stay in the home.

FAQ

Q. What is included in a mortgage payment?
A. A basic mortgage payment consists of principal and interest. However, many lenders collect property taxes and homeowner's insurance through an escrow account, adding those costs to your monthly bill. Private mortgage insurance (PMI) may also apply if your down payment is below 20%. This calculator covers only principal and interest.
Q. How does the loan term affect my monthly payment?
A. A longer loan term (e.g., 30 years) results in lower monthly payments but significantly more total interest paid over the life of the loan. A shorter term (e.g., 15 years) means higher monthly payments but less overall interest and faster equity building. Use the calculator to compare different terms side by side.
Q. What happens if I make extra payments?
A. Making extra payments toward the principal can shorten your loan term and reduce the total interest you pay. Even one extra payment per year can save thousands of dollars in interest over a 30-year mortgage. Check with your lender to ensure there are no prepayment penalties before making additional payments.
Q. How does a higher down payment affect my mortgage?
A. A larger down payment reduces the loan principal, which directly lowers your monthly payment and the total interest paid. Additionally, putting down 20% or more typically eliminates the need for PMI, further reducing your monthly housing costs. It also means you start with more equity in the home.
Q. Is the interest rate the same as the APR?
A. No. The interest rate is the cost of borrowing the principal, while the Annual Percentage Rate (APR) includes the interest rate plus additional fees and costs such as origination fees and mortgage points. The APR gives a more complete picture of the true cost of the loan. This calculator uses the nominal interest rate for the monthly payment formula.

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