How it works
This mortgage calculator estimates your total monthly housing payment — often called PITI (Principal, Interest, Taxes, Insurance). Principal and interest are calculated with the standard amortization formula using your loan amount (home price minus down payment), interest rate, and loan term. Property tax and home insurance are converted from annual to monthly and added on top, along with any HOA dues. The result also shows total interest paid over the life of the loan and the total cost of the mortgage, so you can compare different down payments, rates, or terms before committing. All calculations happen in your browser — nothing is sent to a server.
Mortgage Calculator
Estimate your monthly payment including principal, interest, taxes, and insurance.
FAQ
What does PITI stand for?
Principal, Interest, Taxes, and Insurance — the four components most lenders bundle into your monthly mortgage payment.
Does a larger down payment always lower my payment?
Yes — a larger down payment reduces the amount you finance, which lowers both the principal & interest portion and the total interest paid over the life of the loan.
Are property tax and insurance estimates accurate?
They're based on the annual rates and amounts you enter, converted to a monthly figure. Actual escrow amounts set by your lender may differ slightly and can change year to year.
What's the difference between this and the Loan / Amortization Calculator?
This tool adds taxes, insurance, and HOA on top of principal & interest for a full monthly payment estimate. The Amortization Calculator shows only principal & interest, but breaks down every single payment over the loan’s life.
Related tools
Auto Loan Calculator · Compound Interest Calculator · Sales Tax & Discount Calculator · Loan / Amortization Calculator