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Coastal Federal Credit Union Auto Loan Calculator

Reviewed by Calculator Editorial Team

This Coastal Federal Credit Union Auto Loan Calculator helps you estimate your monthly payments, total interest costs, and loan terms. Simply enter your loan amount, interest rate, and loan term to get an instant calculation.

How to Use This Calculator

Using this auto loan calculator is simple:

  1. Enter the loan amount you're considering (e.g., $25,000)
  2. Input the annual interest rate (e.g., 4.5%)
  3. Select the loan term in years (e.g., 5 years)
  4. Click "Calculate" to see your estimated monthly payment

The calculator will display your estimated monthly payment, total interest paid, and total amount paid over the life of the loan. You can also view a breakdown of your loan payments in the chart below the calculator.

Formula Used

The auto loan calculator uses the standard mortgage 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 a loan with a fixed interest rate over a specified period.

Worked Example

Let's calculate an example auto loan:

  • Loan amount: $25,000
  • Annual interest rate: 4.5%
  • Loan term: 5 years

Using the formula:

  1. Convert annual rate to monthly: 4.5% ÷ 12 = 0.375% or 0.00375
  2. Calculate number of payments: 5 × 12 = 60
  3. Plug values into formula: M = 25000 [ 0.00375(1 + 0.00375)^60 ] / [ (1 + 0.00375)^60 - 1 ]
  4. Calculate monthly payment: $452.34

Total interest paid over 5 years would be $1,573.40, and the total amount paid would be $26,573.40.

Frequently Asked Questions

What is the difference between APR and interest rate?

APR (Annual Percentage Rate) is the annual interest rate charged on a loan, while the interest rate is the actual rate used to calculate payments. APR includes additional fees and costs, making it a more accurate representation of the true cost of borrowing.

How does loan term affect my monthly payment?

A longer loan term means lower monthly payments but more total interest paid. A shorter loan term means higher monthly payments but less total interest paid. Choose a term that fits your budget and financial goals.

Can I pay extra toward my loan?

Yes, paying extra toward your loan can save you money on interest. The calculator shows the standard monthly payment, but you can adjust your payments to pay off the loan faster and reduce interest costs.