DollarWise

Free Mortgage Payment Calculator

September 29, 2026 · 1 min read · By the DollarWise team

A mortgage is usually the biggest bill of your life, so knowing the real monthly payment before you fall in love with a house matters. This free calculator breaks your payment into principal and interest — and shows how much of the first payment actually builds your equity.

Remember the rest of the bill

Principal and interest are only part of ownership. Budget separately for property taxes, homeowner’s insurance, maintenance (about 1% of the home’s value per year), and any HOA fees before deciding what you can afford.