Finance
Instant, private, and free
Student Loan Payment Calculator.
Estimate student-loan payments from principal, rate, and term.
Set your values
Results update as you type.
FAQs
How does the student loan payment calculator work?
Enter the requested values to receive a deterministic result. No live market, tax, or jurisdiction data is inferred.
Use Cases
Plan your monthly budget
See what your monthly student loan payment might be before you borrow or after you graduate, so you can plan your budget and avoid surprises.
Example: Enter $30,000 principal, 5% annual rate, and 10-year term to see a monthly payment of about $318.
Compare loan terms
Compare how different loan terms (e.g., 10 vs. 20 years) affect your monthly payment and total interest, helping you decide which term fits your financial goals.
Example: A 20-year term lowers the monthly payment but increases total interest compared to a 10-year term.
Frequently Asked Questions
- How does the student loan payment calculator work?
- You enter the principal (amount borrowed), the annual interest rate, and the loan term in years. The calculator uses the standard amortization formula to estimate a fixed monthly payment and the total interest you'll pay over the life of the loan.
- What does 'total interest' mean in this calculator?
- Total interest is the sum of all interest charges you'll pay over the entire loan term, assuming you make only the estimated monthly payments and never miss a payment. It's calculated by subtracting the principal from the total of all payments.
- Can I use this calculator for federal or private student loans?
- Yes, you can use it for any fixed-rate student loan, federal or private, as long as the interest rate is fixed and the loan term is known. For variable-rate loans, the estimate may not be accurate because the rate can change over time.
Tips & Common Mistakes
Tips
- Use the current interest rate on your loan or the rate you expect to get. Even a small difference in rate can significantly change your monthly payment and total interest.
- If you have multiple student loans, calculate each separately and add the results to see your total monthly obligation.
- Remember that this calculator gives an estimate. Your actual payment may differ if your loan has fees, deferment, or a variable rate.
- Consider making extra payments toward the principal to reduce total interest and pay off your loan faster.
Common Mistakes to Avoid
- Using the nominal annual rate without converting it to a monthly rate. The calculator does this for you, but make sure you enter the annual rate, not the monthly rate.
- Entering the loan term in months instead of years. The calculator expects years, so if your term is 120 months, enter 10 years.
- Forgetting to include all borrowed amounts, such as fees that are added to the principal, which can lead to an underestimate of your payment.
Last updated: August 13, 2026