How it works
This auto loan calculator figures out how much you'll finance — vehicle price minus your down payment and trade-in, plus sales tax on the purchase — then applies the standard loan amortization formula to spread that amount over your chosen term. The result shows your estimated monthly payment along with the total amount financed, total interest paid, and total cost over the life of the loan. Use it to compare different down payments, trade-in values, or loan terms before you visit a dealership. Everything is calculated locally in your browser.
Auto Loan Calculator
Estimate your monthly car payment, including tax, trade-in, and down payment.
FAQ
Should I include my trade-in value or handle it separately?
Include it here to see the full picture — trade-in value reduces the amount financed just like a down payment does, before sales tax is applied in most states.
Is sales tax calculated before or after the trade-in?
This calculator applies sales tax to the full vehicle price, matching how most states tax new car purchases; some states tax only the price minus trade-in — check your local rules if that applies to you.
Why is my estimate different from the dealership's number?
Dealerships often add fees (documentation, registration, dealer add-ons) not included here, and your actual approved interest rate depends on your credit profile.
Can I see a full payment schedule for my auto loan?
Yes — use the Loan / Amortization Calculator with your financed amount, rate, and term (in years) to see every payment broken into principal and interest.
Related tools
Mortgage Calculator · Compound Interest Calculator · Sales Tax & Discount Calculator · Loan / Amortization Calculator