Home Loan Suite • Instant Computation
Mortgage Calculator
Estimate a US mortgage payment, total interest, and total payment in dollars.
$ 0/ month
Payable across 0 equal monthly installments.
Estimate, not a quote
A longer tenure can lower the monthly payment while increasing the total interest. A lender's figure may differ slightly — fees, taxes, and insurance are not included.
The Mathematical Formula Behind the Mortgage Payment
The monthly payment is calculated using the standard reducing-balance formula.
Payment = [P × R × (1 + R)N] / [(1 + R)N − 1]
What is Mortgage Calculator?
A mortgage payment is the fixed monthly amount of principal and interest that repays a home loan in full over its term.
How to use
- 1. Enter the loan amount and annual interest rate.
- 2. Enter the loan term in years or months.
- 3. Review the dollar estimate and interest total.
About Mortgage Calculator
A mortgage calculator gives a quick estimate of the principal-and-interest payment for a fixed-rate home loan. Enter the loan amount, annual interest rate, and loan term. The default term unit is years because US mortgage examples are commonly described as 15-year or 30-year loans, but months are available for a precise term. The output includes the estimated monthly payment, total payment over the term, and total interest paid.
The same standard reducing-balance formula powers the linked EMI page and this mortgage page. The annual percentage is converted to a monthly decimal rate. The number of monthly payments is the term in months. For a positive rate, the formula calculates a level payment; for zero interest, it simply divides principal by the number of payments. Total payment is based on the unrounded monthly result, then values are rounded to two decimal places only when displayed.
The estimate does not include property tax, homeowners insurance, private mortgage insurance, closing costs, points, escrow, down payment, or adjustable-rate changes. A lender's disclosure can differ because of its compounding, rounding, payment date, and fees. Treat this page as a planning aid rather than financial advice. Use the amount and rate from a real loan quote when comparing scenarios, and confirm the full cost with the lender before applying.
Input validation keeps the page useful when a value is missing or outside a practical limit. Amount must be positive and no more than 1,000,000,000,000. Rate is limited to 0 through 100 percent and accepts up to two decimals. Tenure must be a whole number from one through 600 months. The page formats amounts with en-US grouping and the dollar sign. No loan data leaves the browser, and refresh clears the form.
Use the calculator for a first-pass comparison between a shorter and longer term, or between two interest-rate assumptions. The monthly principal-and-interest number is only one part of home affordability. Include the other costs supplied by your lender and consider whether the payment remains comfortable if circumstances change. A saved screenshot or printed result should be labelled as an estimate because it does not become an offer or a rate lock. The browser-only design lets you test scenarios privately before discussing them with a lender or housing professional.
You can repeat a scenario with a different term to understand the trade-off between cash flow and total cost. Keep the currency and grouping in mind when comparing this page with a lender's statement, and do not mix a monthly rate with an annual rate. The input labels describe the assumptions used by the formula so a second calculation can be checked consistently.
Frequently Asked Questions
Does this include property taxes?
No. It estimates principal and interest only.
Why is the payment an estimate?
The payment is an estimate because it covers principal and interest only, using the amount, rate and term you entered. A lender's figure can differ through property tax, insurance, mortgage insurance, fees, closing costs, rounding, payment dates or an adjustable rate. Always confirm the full monthly cost with the lender before applying.
Can I use a 30-year term?
Yes. Enter 30 with years selected, which converts to 360 months.
Does this page use EMI terminology?
No. It is the US mortgage page with dollar formatting and mortgage language.
Is my information saved?
No. Inputs remain in browser memory and clear on refresh.
How is a monthly mortgage payment calculated?
A fixed-rate mortgage payment uses the same reducing-balance formula as an EMI: monthly payment = P × r × (1+r)^n ÷ ((1+r)^n − 1), where P is the loan amount, r is the monthly interest rate, and n is the number of monthly payments. This page estimates principal and interest only — property tax, insurance, and fees are not included.