Auto Loan Calculator
Monthly payment = L × r(1+r)^n ÷ ((1+r)^n − 1) where L = car price − down payment + sales taxL=30000-5000+(25000×0.08)=27000, r=0.05/12, n=60, payment ≈ $509
Free online tool
Enter the car price, down payment, interest rate and loan term to estimate monthly payments.
Instant calculation
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
Type the purchase price of the vehicle.
Provide your down payment, interest rate and loan term.
Enter your local sales tax rate for accurate total cost.
The formula
Loan amount is the car price minus down payment plus sales tax. Uses the standard amortization formula.
Monthly payment = L × r(1+r)^n ÷ ((1+r)^n − 1) where L = car price − down payment + sales taxL=30000-5000+(25000×0.08)=27000, r=0.05/12, n=60, payment ≈ $509
Check the method
Each example follows the same formula used by the calculator.
L=30000-5000+(25000×0.08)=27000, r=0.05/12, n=60, payment ≈ $509≈ $509/monthCommon questions
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.
Loan amount is the car price minus down payment plus sales tax. Uses the standard amortization formula.
Example: $30,000 car, $5,000 down, 5% rate, 60 months, 8% tax — monthly? — ≈ $509/month.
No. All calculations run locally in your browser. Your inputs and results are never uploaded, stored or shared with anyone.
Yes. The Auto Loan Calculator is completely free. No account, sign-up or payment is required. It works on mobile, tablet and desktop.
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