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Education Loan Planning Tool

Student Loan Calculator

Estimate your monthly student loan payment, total interest cost, repayment amount, payoff date, and potential savings from making additional monthly payments.

Enter Your Loan Details

Adjust the values below to calculate your repayment estimate.

%
Years

Loan Amortization Preview

View how your first twelve payments may be divided.

Payment Payment Amount Principal Interest Remaining Balance

The table displays the first 12 scheduled payments. The final payment may be smaller than the regular monthly payment.

What Is a Student Loan Calculator?

A Student Loan Calculator is a financial planning tool that estimates the cost of repaying an education loan. It uses your loan balance, annual interest rate, and repayment term to calculate an estimated monthly payment.

The calculator also shows how much interest you may pay over the complete repayment period. You can add an optional extra monthly payment to see whether paying more could reduce your interest cost and help you become debt-free sooner.

What the Calculator Estimates

  • Your standard monthly student loan payment.
  • Your monthly payment after adding an extra amount.
  • The total interest charged during repayment.
  • The total amount paid toward the loan.
  • Your estimated payoff period and payoff date.
  • Potential interest and time savings from extra payments.

Student Loan Payment Formula

For a fixed-rate loan, the monthly payment is calculated using the standard amortization formula:

M = P × [r(1 + r)n] ÷ [(1 + r)n − 1]

In this formula, M represents the monthly payment, P is the loan principal, r is the monthly interest rate, and n is the total number of monthly payments.

Why Extra Payments Can Make a Difference

Interest is generally calculated using the outstanding loan balance. An additional payment applied to principal reduces that balance faster. A lower balance can result in less interest being charged during future months and may shorten the repayment schedule.

Important: This calculator provides estimates for educational and planning purposes. Actual payments may differ because of lender policies, variable rates, daily interest, deferment, income-based plans, fees, subsidies, capitalization, or payment allocation rules.
Simple Process

How the Student Loan Calculator Works

Get a useful repayment estimate by entering three essential loan details and any optional additional payment.

01

Enter Your Balance

Add the current amount you owe. Include capitalized fees or other amounts added to the principal when applicable.

02

Add Rate and Term

Enter the annual interest rate and the number of years available to repay the student loan.

03

Review Your Results

Compare the monthly payment, interest cost, payoff date, repayment total, and savings from additional payments.

Helpful Answers

Frequently Asked Questions

Learn more about student loan payments, interest, repayment periods, and additional payments.

A fixed monthly payment is calculated from the outstanding principal, monthly interest rate, and total number of payments. Each payment contains both principal and interest.

Additional payments can reduce total interest when they are applied to the principal balance. Confirm how your lender applies extra payments and whether any restrictions apply.

Yes. When the annual interest rate is zero, the calculator divides the total principal by the number of scheduled monthly payments.

No. The calculation uses a standard fixed-payment amortization method. Income-driven plans may depend on income, family size, regulations, annual recertification, and other eligibility requirements.

Your lender may use daily interest, different rounding rules, variable rates, payment fees, deferment periods, capitalized interest, or a specialized repayment plan.