Student Loan Payoff Calculator

Estimate payoff time and interest with optional extra payments.

Estimated results

Months93 months

Interest$10,986

Total$50,986

Federal benefits and capitalization events are not modeled.

Extra payments can affect federal benefits and forgiveness strategies. Compare options in the official StudentAid.gov Repayment Calculator.

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Planning guide

Read the complete guide →

Understand this estimate before using it

Quick answer

What does the Student Loan Payoff Calculator do?

Estimate payoff time and extra-payment savings. It amortizes the entered student-loan balance with and without extra principal to compare payoff time and interest.

Formula and calculation method

It amortizes the entered student-loan balance with and without extra principal to compare payoff time and interest.

The result is only as reliable as the inputs. Use current balances, rates, fees, dates, and documents; then change uncertain assumptions to see whether the conclusion remains stable.

How to interpret the result

Treat the output as a comparison or planning range, not a quote, approval, eligibility decision, tax return, or prediction. Review the breakdown—not only its headline number—and read every stated exclusion.

For current background, review Federal Student Aid repayment guidance. Product documents and official program tools control when they differ from this educational model.

Worked scenario

Put the result in context

For a $40,000 balance, compare the standard payment with any eligible federal income-based estimate and a private refinance quote. Include the monetary value of federal protections before treating a lower private rate as savings.

This scenario illustrates the method; it is not a quote, forecast, recommendation, or substitute for entering your actual facts.

Before you calculate

Gather current information before changing the defaults. A result based on verified records is more useful than a precise answer built from guesses.

the loan balance

Check the date, unit, and source of this input before entering it.

the interest rate

Check the date, unit, and source of this input before entering it.

your current monthly payment

Check the date, unit, and source of this input before entering it.

any extra you pay each month

Check the date, unit, and source of this input before entering it.

What the result can answer

It can show how the entered assumptions interact, provide a consistent comparison, and reveal whether changing one important input materially changes the estimate.

What the result cannot decide

It cannot confirm approval, eligibility, market pricing, future performance, legal or tax treatment, contract quality, or whether the choice fits every part of your finances.

A practical next-step workflow

01 · Verify
Compare the inputs with current statements, quotes, official rules, and product documents.
02 · Stress-test
Run a second case with a less favorable value for any extra you pay each month.
03 · Confirm
Tell your servicer to apply any extra toward your balance, and check whether an income-driven plan or forgiveness fits before you rush to prepay before acting.

Frequently asked questions

Does the IDR calculator confirm eligibility?

No. Use StudentAid.gov for current eligibility, enrollment, and official payment estimates.

Can federal loans be refinanced federally?

Federal consolidation and private refinancing are different. Private refinancing generally replaces federal loans with a private loan and removes federal benefits.

What can make this estimate differ from an actual result?

Timing, rounding, rate changes, fees, taxes, eligibility rules, product conventions, and facts not requested by this focused calculator can all create differences.

Which inputs deserve a second scenario?

Retest any input that is quoted rather than fixed, depends on future behavior, or materially changes the result. Conservative and optimistic cases reveal more than false precision.

What should I verify before making a decision?

Verify current statements, disclosures, official rules, taxes, fees, cancellation or prepayment terms, and the consequences of a less favorable outcome.

Continue your research

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Prepared by Loan Lyze Editorial and reviewed under the Loan Lyze editorial framework on November 8, 2026. Educational estimate only. See our methodology, editorial policy, and corrections policy.

Student Loan Payoff Calculator

Plan student-loan payoff