Mortgage payment calculator

• Enter values using decimal points and choose the operation or assumptions shown.
• Select Calculate and review the numerical result and its stated conventions.
• Download the result or amortization schedule when available. Reset restores the example inputs.

300,000 property with 60,000 down at 5% for 360 months gives 1,288.37 principal and interest per month.

• Runs locally. Decimal calculations use floating-point arithmetic, rounded to 12 significant digits; monetary displays use two decimals. Exact integer and fraction results are labelled separately.
• Use one currency throughout. Estimates use your inputs and stated assumptions; fees, taxes, inflation and rate changes are excluded unless explicitly entered. These are calculations, not lending offers or investment forecasts.
• Fixed nominal annual interest divided by 12; payments occur at month end for 1–1200 whole months. Amortization uses unrounded amounts; displayed cents can differ from a lender’s rounding and need not sum exactly. No extra payments or balloon terms.
• Property taxes and insurance are amounts you enter, not local rules or forecasts. No automatic mortgage-insurance threshold, closing costs or affordability recommendation.