Auto Loan Calculator
Estimate your monthly car payment including sales tax, fees, down payment and trade-in. Compare loan terms instantly.
Updated June 2026 · Reviewed by the apitpi team · How we calculate
Estimated monthly payment
$660
$32,950 financed over 60 months
- Loan amount
- $32,950
- Sales tax
- $2,450
- Total interest
- $6,665
- Total of payments
- $39,615
- Total cost (w/ down)
- $44,615
- Payoff date
- Jun 2031
Tip: a shorter term means a higher monthly payment but far less total interest. Try 48 vs 72 months.
How to use this auto loan calculator
Enter the vehicle price, your down payment, and any trade-in value. Add your state sales tax rate and dealer fees, then your APR and loan term. The calculator shows your monthly payment, total interest, and the true total cost of the car.
Tips to pay less
Put more down to shrink the loan, choose the shortest term you can comfortably afford, and shop your APR — even a 1% lower rate saves hundreds over the life of the loan.
Frequently asked questions
How is my car payment calculated? +
We finance the vehicle price minus your down payment and trade-in, plus sales tax and fees, then amortize that loan amount over your chosen term at the given APR. The result is your fixed monthly principal-and-interest payment.
Does a longer loan term save me money? +
No. A longer term (e.g. 72 months) lowers the monthly payment but increases the total interest you pay. A shorter term costs more per month but far less overall. Compare 48 vs 72 months above to see the difference.
Should I roll taxes and fees into the loan? +
You can, and this calculator does by default. Financing taxes and fees raises your loan amount and total interest. Paying them upfront keeps your loan smaller.
Is this auto loan calculator free? +
Yes — completely free, no signup, and all math runs privately in your browser.