FREE CALCULATOR

Car Payment Calculator

Estimate a monthly car payment, amount financed, and total interest using your own purchase price, down payment, APR, term, tax-rate, and fee assumptions.

Methodology reviewed September 2026

Enter your assumptions

ESTIMATED RESULT$0

How this calculator works

The calculator estimates the financed balance after entered tax, fees, and down payment, then applies the standard amortizing-loan formula. Longer terms generally reduce the monthly payment while increasing the amount of time interest accrues.

Example

Shorter term

Higher payment, usually lower total interest.

Longer term

Lower payment, usually higher total interest and greater negative-equity risk.

What can change the answer?

Actual financing terms, taxes, fees, incentives, insurance, maintenance, depreciation, driving patterns, and vehicle condition can materially change the result. Use current transaction-specific inputs whenever possible.

Planning estimate only. This tool is not a lender quote, tax determination, vehicle appraisal, insurance quote, or financial recommendation.

Common questions

Does a longer term lower the payment?

Usually, but it can increase total interest.

Does a bigger down payment help?

It reduces the amount financed and usually lowers both payment and interest.

Does trade-in equity matter?

Yes. Use the homepage calculator to model trade value, loan payoff, and tax-credit treatment.

Are taxes included?

Only the tax rate you enter. Local and transaction-specific rules can differ.

Is this a lender quote?

No. It is an estimate using the assumptions you enter.