9 APR Auto Loan Calculator

This calculator helps you estimate your monthly auto loan payments when borrowing at a 9% Annual Percentage Rate (APR). Simply enter your loan amount and loan term, then click "Calculate" to see your estimated monthly payment.

How to Use This Calculator

Using this auto loan calculator is simple:

Enter the loan amount you want to borrow in the "Loan Amount" field.
Select the loan term in years from the dropdown menu.
Click the "Calculate" button to see your estimated monthly payment.
Review the results and the amortization chart showing your payment breakdown.

The calculator uses the standard auto loan formula with a fixed 9% APR. The results are estimates and may vary slightly from actual loan terms.

Formula Used

The monthly payment for an auto loan is calculated using the standard loan payment formula:

Loan Payment Formula

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

Where:

M = Monthly payment
P = Principal loan amount
i = Monthly interest rate (APR/12)
n = Number of payments (Loan term in years × 12)

For a 9% APR, the monthly interest rate is 9% ÷ 12 = 0.75% or 0.0075 in decimal form.

Worked Example

Let's calculate the monthly payment for a $20,000 loan with a 5-year term at 9% APR:

Principal (P) = $20,000
Annual interest rate = 9% or 0.09
Monthly interest rate (i) = 0.09 ÷ 12 = 0.0075
Loan term in months (n) = 5 × 12 = 60

Plugging these values into the formula:

Calculation Steps

M = $20,000 [ 0.0075(1 + 0.0075)⁶⁰ ] / [ (1 + 0.0075)⁶⁰ - 1 ]

First calculate (1 + 0.0075)⁶⁰ ≈ 1.5686

Then 0.0075 × 1.5686 ≈ 0.01176

Now plug back into the formula:

M ≈ $20,000 [ 0.01176 ] / [ 1.5686 - 1 ]

M ≈ $20,000 × 0.01176 / 0.5686

M ≈ $235.20 / 0.5686 ≈ $413.75

The estimated monthly payment for this loan would be approximately $413.75.

Frequently Asked Questions

What is an APR in an auto loan?

The Annual Percentage Rate (APR) is the yearly cost of borrowing expressed as a percentage. It includes both the interest rate and any additional fees. In this calculator, we use a fixed 9% APR for calculations.

How does loan term affect my monthly payment?

A longer loan term means lower monthly payments but more interest paid over time. A shorter term results in higher monthly payments but less total interest. The calculator shows how these factors interact.

Is this calculator accurate for my specific loan?

This calculator provides estimates based on standard auto loan formulas. Actual loan terms may vary depending on your lender, loan conditions, and additional fees. Always check with your lender for precise terms.

Can I use this calculator for refinancing?

Yes, you can use this calculator to estimate payments for refinancing. Simply enter your current loan amount and the new loan terms to compare options.