Monthly payment, total interest, and a full amortization schedule for any loan.
Enter the loan amount, an optional down payment, the annual interest rate, and the term in years. The calculator uses the standard amortization formula M = P[r(1+r)^n] / [(1+r)^n - 1] to compute monthly payment. Click "Show amortization schedule" to see month-by-month principal, interest, and remaining balance. A 0% rate is handled with a simple equal-principal split.