How to Use the Mortgage Calculator
Our mortgage calculator makes it easy to estimate your monthly home loan payment. Simply enter the home price, your down payment, the annual interest rate, and the loan term. The calculator instantly shows your monthly principal and interest payment, the total amount you will repay, and the total interest cost over the life of the loan.
The amortization chart lets you visualise how your loan balance decreases over time. In the early years, most of your payment goes toward interest. As time passes, a larger portion goes toward reducing the principal — this is the power of amortization working in your favour toward the end of the loan.
Whether you are buying your first home in the United States, United Kingdom, Canada, or Australia, the core mortgage math is the same. The monthly payment formula uses the loan principal, the monthly interest rate (annual rate ÷ 12), and the total number of payments (years × 12). Use the amortization table below the chart to see exactly how much principal and interest you pay in any given month.
Keep in mind that your actual monthly housing cost will likely include property taxes, homeowners insurance, and possibly private mortgage insurance (PMI) if your down payment is below 20%. This calculator focuses on the principal and interest portion of your payment — the part determined by your loan terms.