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Navy Federal Auto.loan Calculator

Reviewed by Calculator Editorial Team

Use this Navy Federal Auto Loan Calculator to determine your monthly payments, total interest, and loan payoff date based on your loan amount, interest rate, and term. This tool helps you understand your auto loan obligations and plan your budget accordingly.

How to Use This Calculator

To calculate your auto loan payments:

  1. Enter the loan amount you're requesting in the "Loan Amount" field.
  2. Input the annual interest rate offered by Navy Federal in the "Interest Rate" field.
  3. Select the loan term in years from the dropdown menu.
  4. Click the "Calculate" button to see your results.

The calculator will display your monthly payment, total interest paid over the life of the loan, and the final payoff date.

Formula Used

The calculator uses the standard auto loan payment formula:

Monthly Payment = P × (r(1 + r)^n) / ((1 + r)^n - 1)

Where:

  • P = Principal loan amount
  • r = Monthly interest rate (annual rate divided by 12)
  • n = Number of payments (loan term in years × 12)

Total interest paid is calculated by multiplying the monthly payment by the number of payments and subtracting the principal loan amount.

Worked Example

Let's calculate a $25,000 auto loan with a 4.5% annual interest rate and a 5-year term:

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

Plugging these into the formula:

Monthly Payment = $25,000 × (0.00375(1 + 0.00375)^60) / ((1 + 0.00375)^60 - 1)

≈ $25,000 × (0.00375 × 1.231) / (1.231 - 1)

≈ $25,000 × (0.00462) / 0.231

≈ $25,000 × 0.01999 ≈ $499.75

Total interest paid = ($499.75 × 60) - $25,000 ≈ $14,985

Final payoff date will be approximately 5 years from today.

Frequently Asked Questions

What is the difference between APR and interest rate?
APR (Annual Percentage Rate) is the cost of credit expressed as a yearly rate, while the interest rate is the actual percentage charged on your loan. APR includes additional fees and costs, making it a more accurate representation of the total cost of borrowing.
How does a longer loan term affect my payments?
A longer loan term typically results in lower monthly payments but higher total interest paid over the life of the loan. Shorter terms usually mean higher monthly payments but lower total interest.
Can I pay extra toward my auto loan?
Yes, making extra payments can reduce your principal balance faster and lower your total interest. Navy Federal often offers prepayment options for auto loans.
What happens if I miss a payment?
Missing payments can result in late fees, higher interest charges, and potential damage to your credit score. It's important to make payments on time to avoid these consequences.