Free online tool

Auto Loan Calculator

Enter the car price, down payment, interest rate and loan term to estimate monthly payments.

Instant calculation

Auto Loan Calculator

Enter the car price, down payment, interest rate and loan term to estimate monthly payments.

Your numbers stay in this browser. Nothing is uploaded or saved.

Three clear steps

How to use this calculator

  1. 01

    Enter car price

    Type the purchase price of the vehicle.

  2. 02

    Enter down payment and rate

    Provide your down payment, interest rate and loan term.

  3. 03

    Add sales tax

    Enter your local sales tax rate for accurate total cost.

The formula

How this calculation works

Loan amount is the car price minus down payment plus sales tax. Uses the standard amortization formula.

Auto Loan Calculator

Monthly payment = L × r(1+r)^n ÷ ((1+r)^n − 1) where L = car price − down payment + sales tax

L=30000-5000+(25000×0.08)=27000, r=0.05/12, n=60, payment ≈ $509

Check the method

Worked examples

Each example follows the same formula used by the calculator.

$30,000 car, $5,000 down, 5% rate, 60 months, 8% tax — monthly?

L=30000-5000+(25000×0.08)=27000, r=0.05/12, n=60, payment ≈ $509≈ $509/month

Common questions

Questions about this calculation

What is the Auto Loan Calculator?

The Auto Loan Calculator helps you calculate your monthly car payment including taxes and down payment. Enter your values and select Calculate to get an instant result.

How is the result calculated?

Loan amount is the car price minus down payment plus sales tax. Uses the standard amortization formula.

Can you show an example?

Example: $30,000 car, $5,000 down, 5% rate, 60 months, 8% tax — monthly? — ≈ $509/month.

Is my data saved when I use the Auto Loan Calculator?

No. All calculations run locally in your browser. Your inputs and results are never uploaded, stored or shared with anyone.

Is the Auto Loan Calculator free to use?

Yes. The Auto Loan Calculator is completely free. No account, sign-up or payment is required. It works on mobile, tablet and desktop.