Auto Loan Calculator
Compare vehicle financing payments and total interest.
What this auto loan calculator does
Compare vehicle financing by estimating the payment and total interest from the amount financed, APR and loan term.
How to use the calculator
Start with the amount you actually expect to finance, not just the advertised vehicle price. Taxes, title fees, dealer fees, add-ons, trade-in value and down payment can change the amount financed.
How the calculation works
The calculator uses standard fixed-payment amortization. The estimated total interest is the sum of scheduled payments minus the amount financed. It does not replace a lender’s Truth in Lending disclosure.
What the result means
Example: financing $25,000 at 7% for 60 months produces a payment of about $495.03 before other ownership costs.
Important assumptions and limitations
A lower monthly payment is not automatically a cheaper loan. CFPB and FTC guidance emphasize comparing APR, term, amount financed, finance charge and total cost—not just the monthly payment.
Frequently asked questions
Yes. The entered sales tax is added to the taxable vehicle amount after the down payment and trade-in credit, then included in the financed amount.
No. Registration, dealer fees, warranties, and negative equity from a trade-in are not modeled unless you incorporate them into the amount yourself.
A longer term spreads the balance over more payments, but it normally increases total interest when the APR is unchanged.
Use the APR shown by the lender when possible. The calculator treats the entered APR as a nominal annual rate for monthly amortization.
Related calculators
More tools in Cars.