Finance & Money

Auto Loan Calculator - Calculate Car Payments

Estimate car loan payments, total interest, and overall cost including taxes and fees.

Created and maintained by: CalcTago Editorial TeamLast updated: 2026-02-13

Formulas and edge cases are reviewed against authoritative references before publication. For methodology, editorial standards, or corrections, use the links below.

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Frequently asked questions

Does this include sales tax?

Yes. Enter your local sales tax rate and the calculator adds it to the financed amount.

What fees should I include?

Add dealer fees, registration, or documentation fees if they are financed with the loan.

How can I lower my car payment?

Increase the down payment, choose a longer term, or secure a lower interest rate.

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About this tool

Inputs

  • Car price
  • Down payment
  • Interest rate
  • Loan term
  • Sales tax
  • Fees

Results

  • Loan amount
  • Monthly payment
  • Total interest
  • Total cost

Numbers tell a story, and the Auto Loan Calculator helps you read it. Plug in your data to see what the math reveals. Understanding the time value of money is essential for sound financial planning. Amortization schedules split each payment into principal and interest portions. All you need to supply is car price, down payment, interest rate, loan term, sales tax and fees. From there, the tool determines loan amount, monthly payment, total interest and total cost.

From students to professionals, anyone who needs to estimate car loan payments, total interest, and overall cost including taxes and fees benefits from getting an instant, verifiable answer. Add dealer fees, registration, or documentation fees if they are financed with the loan. Factor in inflation when projecting long-term growth; a nominal rate of 7% with 3% inflation yields roughly 4% real growth. Small changes in interest rates or time horizons can dramatically shift outcomes. Experiment with different inputs to compare scenarios. Seeing how the result shifts tells you which factors matter most.