🚗 Car Interest Calculator
Estimate your monthly car loan payment and how much interest you’ll pay in total over the life of the loan.
How car loan interest works
Most auto loans are simple-interest, fixed-rate installment loans: you repay the amount borrowed plus interest in equal monthly payments over a set term, with each payment covering that month’s interest plus a portion of the principal.
How this calculator works
Enter your loan amount, the annual interest rate (APR), and the loan term in months. The calculator applies the standard amortization formula to estimate your fixed monthly payment, then multiplies that by the number of payments to show the total cost of the loan and how much of that total is interest.
This estimate covers principal and interest only and does not include sales tax, fees, add-ons, or insurance that a lender may include in an actual financed amount. For general planning purposes only; confirm exact terms with your lender.