Mortgage Calculator

Enter the home price, down payment, interest rate and loan term to estimate your monthly principal-and-interest payment. Updates instantly as you type, entirely in your browser.

0.00 Monthly payment (P&I)
0.00 Loan amount
0.00 Total interest
0.00 Total cost (down + payments)

How this is calculated

The loan amount is the home price minus your down payment. The monthly payment uses the standard amortizing loan formula: M = P × r × (1 + r)n / ((1 + r)n − 1), where P is the loan amount, r is the monthly interest rate (annual rate divided by 12), and n is the number of monthly payments (years × 12). This covers principal and interest only — it doesn't include property tax, homeowners insurance, or HOA fees, which many lenders roll into your actual monthly bill separately.