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Car Payment Calculator

Estimate monthly payments for your auto loan.

Last updated: June 13, 2026

Calculator

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Results

Monthly Payment$478
Total Loan Amount$25,000
Total Interest Paid$3,652
Total Cost$33,652

How to Use This Calculator

  1. 1Enter the vehicle price, down payment, and any trade-in value.
  2. 2Enter the interest rate (APR) from your lender.
  3. 3Select your preferred loan term.
  4. 4View your monthly payment, total interest, and total cost.

Formula Explanation

Monthly car payments are calculated using the standard amortization formula that accounts for compound interest over the loan term.

Monthly Payment = P × [r(1+r)^n] / [(1+r)^n − 1] Total Interest = (Monthly × n) − Principal

Variables:

PPrincipal (price − down payment − trade-in)
rMonthly rate (APR ÷ 1200)
nNumber of payments

Worked Examples

$30K car, $5K down, 5.5% APR, 60 months

  1. 1. Principal = $30,000 − $5,000 = $25,000
  2. 2. r = 5.5% ÷ 12 = 0.4583%
  3. 3. Monthly = $25,000 × 0.004583 × 1.004583^60 / (1.004583^60 − 1)
Result: $477/month | Total interest: $3,619 | Total cost: $33,619

Why Use This Calculator

  • Know your exact monthly payment before visiting the dealership.
  • Compare different loan terms to find the best balance of payment and total cost.
  • See how much interest you will pay over the life of the loan.
  • Factor in trade-in value and down payment for accurate results.
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Tips & Best Practices

  • Shorter loan terms have higher payments but save thousands in interest.
  • Get pre-approved by your bank before visiting dealerships for better negotiating power.
  • Keep total car costs (payment + insurance + fuel) under 15–20% of gross income.
  • A larger down payment reduces both monthly payments and total interest.

Common Mistakes to Avoid

❌ Focusing only on monthly payment and accepting a longer term.

✅ Compare total cost across terms — a 72-month loan costs thousands more than a 48-month loan.

❌ Forgetting to include tax, title, and fees in the vehicle price.

✅ Add 8–10% to the sticker price for a realistic total.

❌ Not shopping around for interest rates.

✅ Check rates from your bank, credit union, and the dealer — even 0.5% APR difference saves hundreds.

Frequently Asked Questions

What is a good interest rate for a car loan?
As of 2024, good rates are 5–7% for new cars and 7–10% for used cars with good credit. Excellent credit (750+) may qualify for 4–5%. Rates vary by lender, credit score, and market conditions.
Should I choose a shorter or longer loan term?
Shorter terms (36–48 months) save significant money on interest but have higher monthly payments. Longer terms (60–84 months) reduce payments but increase total cost. A 60-month loan is a common middle ground.
How much should I put down on a car?
Financial experts recommend 20% for a new car and 10% for a used car. This reduces your loan amount, lowers monthly payments, and helps avoid being "underwater" on the loan.
Does the car payment include insurance?
No. This calculator shows only the loan payment. Budget separately for insurance ($100–$300/month), fuel, and maintenance.
Can I pay off a car loan early?
Most auto loans allow early payoff without penalties. Check your loan terms. Extra payments reduce total interest significantly, especially early in the loan when most of each payment goes to interest.
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Embed This Calculator

Add the Car Payment Calculator to your website for free. Copy the code below and paste it into your HTML.

<iframe src="https://redicalc.com/embed/automotive/car-payment-calculator" width="100%" height="600" style="border:none;border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,0.1);" title="Car Payment Calculator — RediCalc.com" loading="lazy" allowtransparency="true"></iframe>
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Disclaimer: This calculator is provided for informational and educational purposes only. Results are estimates and should not be used as a substitute for professional advice. RediCalc.com makes no guarantees regarding the accuracy, completeness, or suitability of any calculations. Always consult a qualified professional before making financial, health, construction, or other important decisions.

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