Auto Loan Calculator
Estimate your car payment from price, down payment, trade-in, sales tax, rate and term.
DISCLAIMER: This calculator provides estimates for general informational and educational purposes only and is not financial, investment, tax, or legal advice. Results are approximate and may not reflect your actual situation, fees, taxes, or current rates. Consult a qualified professional before making financial decisions.
What Is the Auto Loan Calculator?
The Auto Loan Calculator estimates your monthly car payment, factoring in the vehicle price, down payment, trade-in value, sales tax, interest rate and loan term. It also shows the amount financed, total interest and total cost. All math runs in your browser.
How It Works
Enter the vehicle price, your down payment and trade-in value, the interest rate, term in months and your sales-tax rate. The monthly payment and full breakdown update instantly.
When to Use It
Use it when buying or financing a car, comparing dealer offers, or deciding how much to put down.
Frequently Asked Questions
- Is sales tax included?
- Yes, optionally. Enter your local rate and it's applied to the price minus trade-in (as in many US states) and added to the amount financed.
- How does the trade-in work?
- Your trade-in value is subtracted from the price (and reduces the taxable amount), lowering the loan and your payment.
Last reviewed: 2026-06-27