Calculator Soup Auto Loan

This calculator helps you determine your monthly auto loan payments, total interest paid, and loan breakdown. Simply enter your loan amount, interest rate, and loan term to get accurate results.

How to Use This Calculator

Using our auto loan calculator is simple:

Enter the loan amount you're applying for in the "Loan Amount" field.
Input the annual interest rate offered by the lender in the "Interest Rate" field.
Specify the loan term in years in the "Loan Term" field.
Click the "Calculate" button to see your monthly payment, total interest, and loan breakdown.

The calculator will display your monthly payment amount, total interest paid over the life of the loan, and a breakdown of principal and interest payments for each year.

Formula Explained

The auto loan payment is calculated using the standard loan payment formula:

Loan Payment Formula

M = P [ i(1 + i)^n ] / [ (1 + i)^n - 1 ]

M = Monthly payment
P = Principal loan amount
i = Monthly interest rate (annual rate divided by 12)
n = Number of payments (loan term in years multiplied by 12)

Where the monthly interest rate is calculated as:

Monthly Interest Rate

i = (Annual Interest Rate / 100) / 12

This formula accounts for the fact that each payment includes both principal and interest, with the interest being applied to the remaining balance each month.

Worked Example

Let's calculate a $25,000 auto loan at 4.5% annual interest for 5 years:

Principal (P) = $25,000
Annual Interest Rate = 4.5%
Loan Term = 5 years

First, calculate the monthly interest rate:

Monthly Interest Rate Calculation

i = (4.5 / 100) / 12 = 0.00375 or 0.375%

Next, calculate the number of payments:

Number of Payments

n = 5 years × 12 = 60 payments

Now apply the loan payment formula:

Monthly Payment Calculation

M = $25,000 [ 0.00375(1 + 0.00375)^60 ] / [ (1 + 0.00375)^60 - 1 ]

M ≈ $456.24 per month

Total interest paid over 5 years would be approximately $3,744.40.

Frequently Asked Questions

How accurate is this auto loan calculator?

This calculator uses standard financial formulas to provide accurate results based on the inputs you provide. The results are estimates and should be used as a guide only. For precise figures, consult with your lender.

Can I use this calculator for refinancing?

Yes, you can use this calculator to estimate your new monthly payments when refinancing. Simply enter your current loan balance, new interest rate, and remaining term to see the potential savings.

Does this calculator account for taxes and fees?

This basic calculator provides an estimate of your principal and interest payments. It does not include taxes, fees, or other optional charges that may apply. Always check with your lender for a complete picture of your loan costs.