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Student Loan Repayment Calculator

Insurance & Loans Free Updated 1 Sep 2026
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ⓘ About this tool 🔄 Last updated 1 Sep 2026 ✓ Reviewed by TopToolAI Team

Estimate your monthly student loan payment and total interest paid over the life of the loan, based on the balance, interest rate, and repayment term. A $30,000 loan at 5% interest over a 10-year term works out to a monthly payment of roughly $318, with total interest paid over the life of the loan coming to about $8,200 on top of the original balance.

How to use Student Loan Repayment Calculator

Step-by-step guide to the boxes below. Open it only if you need help.

  1. 1
    Loan balance Number

    The amount you still owe.

    Example: 20000

  2. 2
    Interest rate % (annual) Number

    The yearly interest rate on the loan.

    Example: 6

  3. 3
    Monthly payment Number

    What you pay, or plan to pay, each month.

    Example: 250

  4. 4
    Press “Calculate”

    Click the button under the boxes. If something is missing or not valid, a short message tells you which box to fix.

  5. 5
    Read your result

    You see how long repayment takes and how much interest you pay in total. Change any box and try again to compare different numbers.

Student Loan Repayment Calculator FAQs

Does this include any government subsidy or forgiveness programs?
No — this is a straightforward amortization calculation based on the balance, rate, and term you enter.
What happens if I pay more than the minimum?
Extra payments reduce the principal faster, which shortens the loan term and lowers the total interest paid overall.
Why does my monthly payment barely reduce the balance at first?
Similar to other amortized loans, early payments go mostly toward interest — the principal drops faster later as the balance shrinks.
Should I refinance my student loan for a lower rate?
It can save money if you qualify for a meaningfully lower rate, but check if you'd lose access to government protections (like income-based repayment) tied to the original loan.

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