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LunaCalc

Finance

Auto Loan Calculator

Calculate car loan payments, interest and total cost.

Calculator

About this calculator

This auto loan calculator estimates vehicle financing payments from price, down payment, rate, and loan term.

Formula notes

The financed amount is usually price minus down payment, then amortized across the selected term at the given rate.

Worked examples

  1. Example: a 30000 car loan at 5% for 60 months costs about 566.14 per month and roughly 3968 in total interest.
  2. For a $32,000 car with $5,000 down, a $2,000 trade-in, 6% tax, and a 60-month loan at 6.5%, the financed balance must include the selected tax and fee assumptions before monthly payment is calculated.

How to use it

  1. Enter vehicle price and down payment.
  2. Set the interest rate and loan term.
  3. Compare monthly payment and total interest.

Frequently asked questions

Does trade-in equity change the result?

Yes. Treat trade-in value like a reduction in the amount you need to finance.

Should sales tax be included in the financed amount?

It depends on local law and whether you pay the tax upfront. Match the calculator inputs to the written purchase order and loan disclosure.

Limits and interpretation

  • Dealer fees, registration, rebates, taxes on trade-in value, add-ons, and loan insurance vary by location and contract.
  • The estimate assumes a fixed-rate amortizing loan and does not model balloon payments, variable rates, or early-payoff rules.

References