Mortgage Payment Calculator

How to use this calculator

Enter loan amount, annual interest rate, loan term, and estimated monthly taxes/insurance. The tool estimates the monthly payment and total interest over the loan term.

When this calculator is useful

• Comparing mortgage-rate scenarios
• Checking affordability before house hunting
• Understanding why Treasury-yield moves can affect payments

Important limitations

This is not a loan quote. PMI, HOA dues, closing costs, points, escrow changes, and lender fees may change the actual payment.

For best results, run at least three cases: a conservative case, a middle case, and a stretch case. If a small change in inputs creates a big change in the answer, that is a sign the decision may be sensitive to rates, fees, timing, or market performance.