FINANCIAL CALCULATORS
Auto Loan Calculator
Calculate a car payment with sales tax, down payment and trade-in.
100% free
No sign-up
Private — runs in your browser
Instant results
KEY TAKEAWAYS
- Calculate a car payment with sales tax, down payment and trade-in.
- Free to use — no sign-up, no account and no usage limits.
- Runs entirely in your browser, so the numbers you enter stay private.
- Works on desktop and mobile with instant, accurate results.
Last updated: June 2026
About the Auto Loan Calculator
Enter the vehicle price, sales-tax rate, any down payment and trade-in value to see your monthly car payment and total interest.
Frequently asked questions
Is sales tax included in the loan?
Yes — sales tax (applied to price minus trade-in by default) is added to the amount financed, which is how most lenders structure auto loans.
How does a trade-in lower my payment?
Trade-in value reduces both the taxable amount and the amount you need to finance, lowering the monthly payment.
Free online tool from ConvertFleet. Calculations run entirely in your browser — nothing you type is sent anywhere. Results are estimates for general guidance only.