Auto Loan Payment Calculator
Estimate your monthly payment, amount financed, and total interest. Start from a real published APR, then add a trade-in, taxes, and fees if you want. Everything stays in your browser.
Estimated monthly payment
$663.70
60 months at 5.20% APR
- Amount financed
- $35,000
- Total interest
- $4,822
- Total of payments
- $39,822
- Total cost (down + trade equity + payments)
- $39,822
At the current credit union average for new-car loans (5.20% APR, 101 credit unions, each one’s lowest published rate), this loan would be $663.70/mo. About the same total interest.
Estimate only. This calculator is for illustration and is not a loan offer or approval. Your actual APR, payment, taxes, and fees depend on your credit, the vehicle, the lender, and your state. Confirm all figures with your lender and dealer.
Amortization by year
| Year | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $6,293 | $1,671 | $28,707 |
| 2 | $6,628 | $1,336 | $22,079 |
| 3 | $6,981 | $983 | $15,098 |
| 4 | $7,353 | $611 | $7,745 |
| 5 | $7,745 | $220 | $0 |
Questions
- How is the monthly payment calculated?
- We use the standard fixed-rate loan formula: payment = amount financed × r ÷ (1 − (1 + r)^−n), where r is the APR divided by 12 and n is the number of months. At 0% APR the payment is simply the amount financed divided by the number of months.
- What goes into the amount financed?
- Vehicle price, plus any sales tax and fees you switch on, minus your down payment and any trade-in equity. If you owe more on your trade-in than it is worth, the difference (negative equity) is added to the loan.
- Is sales tax charged on the price before or after a trade-in?
- It depends on your state. Many states tax only the price minus the trade-in value; some tax the full price. Use the “Apply tax to price minus trade-in” checkbox to match your state’s rule.
- Where do the APRs come from?
- The quick-fill buttons use “as low as” APRs that lenders publish on their own websites, which we check weekly. Your actual rate depends on your credit, the vehicle, the term, and the lender.
- Do you save what I type?
- No. All math runs in your browser. Nothing you enter is sent to us; the numbers only appear in the page address so you can share or bookmark them.
Estimate only. This calculator is for illustration and is not a loan offer or approval. Your actual APR, payment, taxes, and fees depend on your credit, the vehicle, the lender, and your state. Confirm all figures with your lender and dealer. Compare published rates on the new car, used car, and refinance boards.