Auto Loan Calculator on Google
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Reviewed by Calculator Editorial Team
An auto loan calculator helps you estimate your monthly payments, total interest, and loan cost when purchasing a vehicle. This tool uses standard financial formulas to provide quick, accurate results based on your loan amount, interest rate, and term.
How to Use This Auto Loan Calculator
Using our auto loan calculator is simple:
- Enter the loan amount (the price of the vehicle you want to finance).
- Input the interest rate (the annual percentage rate your lender charges).
- Select the loan term (how many years you'll repay the loan).
- Click Calculate to see your estimated monthly payment and total interest.
The calculator will display your monthly payment, total interest paid over the life of the loan, and the total amount you'll pay back. You can also view a payment schedule chart.
Auto Loan Formula
The auto loan calculator uses the standard loan payment formula:
Monthly Payment Formula
M = P [ i(1 + i)n ] / [ (1 + i)n - 1 ]
Where:
- M = Monthly payment
- P = Principal loan amount
- i = Monthly interest rate (annual rate divided by 12)
- n = Number of payments (loan term in years × 12)
This formula calculates the fixed monthly payment required to pay off the loan in the specified term, including all interest charges.
Worked Example
Let's calculate a monthly payment for a $25,000 loan at 5% annual interest over 5 years:
- Principal (P) = $25,000
- Annual interest rate = 5% → Monthly rate (i) = 5%/12 = 0.4167%
- Loan term = 5 years → Number of payments (n) = 5 × 12 = 60
Plugging these into the formula:
Calculation Steps
M = $25,000 [ 0.004167(1 + 0.004167)60 ] / [ (1 + 0.004167)60 - 1 ]
M ≈ $25,000 [ 0.004167 × 1.2714 ] / [ 1.2714 - 1 ]
M ≈ $25,000 [ 0.005256 ] / 0.2714
M ≈ $25,000 × 0.01937 / 0.2714
M ≈ $484.25
Your estimated monthly payment would be $484.25, with a total interest of $3,600 over the life of the loan.
Frequently Asked Questions
What is an auto loan calculator?
An auto loan calculator is an online tool that estimates your monthly car payment, total interest, and loan cost based on the loan amount, interest rate, and term you enter.
How accurate is an auto loan calculator?
Auto loan calculators provide estimates based on the information you input. For precise figures, consult your lender, as actual payments may vary based on additional fees and your credit profile.
What factors affect my auto loan payment?
Your monthly payment depends on the loan amount, interest rate, loan term, and any additional fees. Lower interest rates and shorter loan terms typically result in lower payments.
Can I use this calculator for refinancing?
Yes, you can use this calculator to estimate payments for refinancing your auto loan. Enter the new loan amount, interest rate, and term to see the potential savings.