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Navyfederal Auto Loan Calculator

Reviewed by Calculator Editorial Team

This Navy Federal Auto Loan Calculator helps you estimate your monthly payments, total interest, and loan cost for an auto loan. Simply enter your loan amount, interest rate, and loan term to get an accurate calculation.

How to Use This Calculator

Using this calculator is simple:

  1. Enter the loan amount you're requesting from Navy Federal.
  2. Input the annual interest rate (APR) offered by Navy Federal.
  3. Select the loan term in years.
  4. Click "Calculate" to see your estimated monthly payment, total interest, and total cost of the loan.

The calculator uses the standard auto loan payment formula to provide accurate estimates. You can also view a breakdown of your loan payments in the chart below the results.

Formula Used

The calculator uses the following formula to calculate your monthly auto loan payment:

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 multiplied by 12)

This formula accounts for the interest on both the original principal and the interest that accumulates each month. The total interest paid is the total of all payments minus the original loan amount.

Worked Example

Let's calculate a $25,000 auto loan with a 4.5% annual interest rate over 5 years (60 months):

  1. Principal (P) = $25,000
  2. Annual interest rate = 4.5% or 0.045
  3. Monthly interest rate (i) = 0.045 / 12 = 0.00375
  4. Number of payments (n) = 5 years × 12 = 60

Plugging these values into the formula:

M = 25000 [ 0.00375(1 + 0.00375)60 ] / [ (1 + 0.00375)60 - 1 ]
M ≈ $452.36

Total interest paid = (Monthly payment × Number of payments) - Principal = ($452.36 × 60) - $25,000 = $1,111.60

Total cost of loan = $25,000 + $1,111.60 = $26,111.60

This example shows that for a $25,000 loan at 4.5% interest over 5 years, you would pay approximately $452.36 per month, with a total interest cost of $1,111.60.

Frequently Asked Questions

What is an auto loan APR?

The Annual Percentage Rate (APR) is the total cost of borrowing expressed as a yearly rate. It includes both the interest rate and any fees associated with the loan. Navy Federal auto loans typically have APRs between 3% and 7%.

How does the loan term affect my payments?

A longer loan term means lower monthly payments but higher total interest paid. A shorter loan term means higher monthly payments but lower total interest. The optimal term depends on your financial situation and ability to save for a down payment.

Is the Navy Federal auto loan calculator accurate?

The calculator provides estimates based on standard auto loan formulas. Actual payments may vary slightly due to factors like prepayment penalties, fees, or changes in interest rates. Always review your loan documents for precise terms.

Can I use this calculator for refinancing?

Yes, you can use this calculator to estimate payments for a refinance. Simply enter the new loan amount, interest rate, and term to compare options. However, refinancing may have different terms and conditions than your original loan.