What is the balance at repayment?

It is the original loan balance plus any estimated interest that accrues before monthly repayment begins. Turn off pre-repayment accrual when modeling a loan for which interest is covered during that period.

How does an extra monthly payment help?

An extra payment reduces principal faster. Therefore, less interest generally accrues in later months, which can reduce both payoff time and total interest.

Does interest accrue during a student loan grace period?

That depends on the loan. Interest may continue accruing on unsubsidized or private loans during school and grace periods, while other loans may receive an interest subsidy. Confirm the treatment with your loan documents or servicer.

Does this calculator include income-driven repayment?

No. It estimates a general fixed-payment repayment schedule. Income-driven plans depend on program rules, borrower income, family details, eligibility, and other information that is not part of this calculation.

Does the estimate include fees or interest-rate discounts?

No. Add financed fees to the balance if necessary and enter the effective fixed rate you expect to pay. Servicer calculations may also use daily interest, so final amounts can differ slightly.

Is this an official repayment quote?

No. The result is a planning estimate. Your loan servicer or lender determines the official payment, repayment options, interest accrual, and payoff amount.

Fixed repayment estimate

Student Loan Calculator

Use this Student Loan Calculator to estimate your required monthly payment and total interest. Then add an extra monthly payment to see how much sooner the balance could be repaid.

Calculator

Estimate student loan repayment

Enter a fixed interest rate and repayment term, then test an extra monthly payment.

Currency

Current loan balanceUSD

Fixed interest rate%

Repayment termyears

Months until repaymentmonths

Extra monthly paymentUSD

Accrue interest before repaymentUseful for unsubsidized-loan estimates

Standard payment vs. extra payment

Scheduled payment only

Monthly payment: $352
Payoff time: 10 years
Total interest: $12,206

With extra payment

Monthly payment: $452
Payoff time: 7y 2m
Total interest: $8,825

About This Student Loan Calculator

Student loan costs depend on more than the amount originally borrowed. For example, interest may accrue before repayment starts, and a longer term usually creates more time for interest to accumulate. The Student Loan Calculator brings those assumptions into one fixed-payment estimate.

In addition, the Student Loan Calculator compares the scheduled payment with an optional higher payment. As a result, you can see the estimated change in payoff time and interest while keeping the required payment visible.

How to Use the Student Loan Calculator

Follow these steps for an accurate Monthly Payment result

1Enter the Loan Balance

Use the amount currently owed, or the estimated balance you expect to have before repayment begins.

2Add the Fixed Interest Rate and Term

Enter the annual rate and the number of years over which the loan is scheduled to be repaid.

3Account for Time Before Repayment

Add any remaining school or grace-period months, then choose whether interest should accrue during that time.

4Test an Extra Monthly Payment

Enter an optional amount above the required payment to estimate possible interest savings and a faster payoff.

5Compare the Repayment Scenarios

Review monthly payments, payoff time, and total interest with and without the extra payment.

How the Student Loan Calculator Works

Starting Repayment Balance

Estimated pre-repayment interest is added to the entered balance when accrual is enabled.

Required Monthly Payment

A fixed-payment amortization formula spreads principal and interest across the selected term.

Extra Payment Scenario

The added amount reduces principal each month after accrued interest is covered.

Interest and Time Savings

The standard schedule is compared with the accelerated schedule to estimate the difference.

Important Repayment Notes

This tool models fixed payments and does not determine eligibility for federal repayment, assistance, or forgiveness programs.
Actual loans may accrue interest daily, so lender or servicer totals can differ slightly from this monthly estimate.
Confirm whether interest accrues before repayment and whether unpaid interest is added to the principal balance.
Use your official loan documents and servicer account before changing a repayment plan or payment amount.

For official U.S. federal loan estimates, use the Federal Student Aid Loan Simulator.

Frequently Asked Questions

Common questions about calculating GPA at Student Loan Calculator

The Student Loan Calculator uses a standard fixed-payment amortization formula based on the repayment balance, fixed annual interest rate, and repayment term. Each simulated payment covers accrued monthly interest first and then reduces principal.

Still have questions?

For official GPA rules and academic policies, contact the Student Loan Calculator Registrar's Office or your academic advisor.

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