FreeCalculators

Auto Loan Payment Calculator

Calculate auto loan payments, total interest, and compare loan offers.

Loans & Mortgage · Reviewed by FreeCalculators Editorial · Updated 2026-09-01

How it works

The Auto Loan Payment Calculator determines your monthly payment and total costs associated with your auto loan based on three key inputs: loan amount, interest rate, and loan term in months. The formula used is derived from the amortization concept, which calculates equal monthly payments over the life of the loan. For instance, if you take out a loan of $25,000 at an interest rate of 6% for a term of 60 months, the monthly payment can be calculated using the formula: M = P[r(1 + r)^n] / [(1 + r)^n – 1], where P is the loan amount, r is the monthly interest rate, and n is the number of payments. Plugging in the numbers, the monthly interest rate is 0.005 (6% annual rate divided by 12), and the total number of payments is 60. This results in a monthly payment of approximately $483.32. The total interest paid over the life of the loan and the total cost can also be derived from this calculation, giving you a complete picture of your loan's financial impact.

Tips

  • Consider making a larger down payment to reduce your loan amount and lower monthly payments.
  • Shop around for the best interest rates; even a small difference can save you money over time.
  • Use this calculator to compare different loan terms to find the best fit for your budget.
  • Factor in additional costs such as taxes and insurance when calculating your total loan cost.

Frequently asked questions

What is the formula used to calculate my monthly auto loan payment?
The formula is M = P[r(1 + r)^n] / [(1 + r)^n – 1], where M is the monthly payment, P is the loan amount, r is the monthly interest rate, and n is the number of payments.
How can I calculate the total interest paid on my auto loan?
Total interest can be calculated by multiplying the monthly payment by the total number of payments and subtracting the original loan amount. For example, with a monthly payment of $483.32 over 60 months, total interest would be $29,000 - $25,000 = $3,000.
What happens if I pay off my loan early?
Paying off your loan early may save you on interest, but check for any prepayment penalties that could apply, which can vary by lender.
Can I use this calculator for loans other than auto loans?
While designed for auto loans, the calculator can be used for any type of installment loan by adjusting the loan amount, interest rate, and term.