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Car loan calculator

Estimate a car loan payment and total interest from vehicle price, down payment, trade-in, fees, interest rate, and loan term.

  • Monthly payment
  • Loan amount and total interest
  • Fees, taxes, and trade-in included
Calculate car loan

Inputs

Car Loan Calculator

Inputs

Use the vehicle price before down payment, trade-in credit, fees, and taxes.

Enter cash paid up front. Use 0 if there is no down payment.

Use the credit you expect for an existing vehicle, not its private-sale value.

%

Include dealer fees, registration, taxes, or other costs financed into the loan.

Optional extra principal payment. Leave 0 for the scheduled payment only.

Formula and method

Car loan payment formula

payment = P × r × (1+r)^n ÷ ((1+r)^n − 1)

Principal is car price plus fees and taxes minus down payment and trade-in.

Zero-interest loans divide principal by months.

Assumptions

  • The formula uses fixed-rate amortization.
  • Fees and taxes are financed into the loan.
  • Extra monthly payment is applied to principal in the payoff preview.

Practical examples

Five-year loan

$32,000 car, $4,000 down, $2,500 trade-in, 7.2%

Monthly payment and total interest

Bigger down payment

Increase down payment

Lower loan amount and monthly payment

FAQ

Is this an approval estimate?

No. It estimates payment math only.

Are fees financed?

Yes. Fees and taxes are added to the amount financed.

Can I use months instead of years?

Yes. Car loan term is entered in months.

Does extra payment reduce interest?

Yes. Extra payment is applied to principal, so the interest and payoff-month estimates update.

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