Does it predict loan forgiveness?

No. It does not evaluate eligibility, qualifying employment, payment counts, discharge or forgiveness.

Can I combine several loans?

Only as a simplified weighted scenario if you independently derive one balance and one rate. Separate rates and servicer allocation are not modeled.

How is the extra payment applied?

It is applied every month after interest and reduces principal immediately in the simulation.

Are capitalization or fees included?

No. Accrued interest capitalization, collection costs, late fees, deferment and forbearance are excluded.

Why might my servicer schedule differ?

Daily accrual, posting dates, rounding, allocation instructions and account-specific rules can produce differences.

Free Calculators Hub

Standard Student Loan Payment and Extra-Payment Estimate

Model one fixed-rate balance without implying access to a federal plan, forgiveness or a servicer outcome.

Standard fixed payment

Optional recurring extra

Month-by-month payoff schedule

Amortizes one fixed-rate balance over a chosen standard term, then applies an optional recurring extra amount to principal through a month-by-month schedule.

Limitation: Educational fixed-rate estimate only.

Jump to calculator · Sources & review

Free Calculators HubStudent Loan Repayment Calculator

CurrencyCurrent student loan principalUse the principal balance you want to model; accrued unpaid interest is not added automatically.Fixed nominal annual rate (%)One constant rate for the entire estimate.Standard repayment term (months)A mathematical fixed-payment term, not enrollment in a named repayment plan.Optional extra payment each monthAssumed paid every month and applied immediately after scheduled interest.

Understanding Standard Student Loan Payment and Extra-Payment Estimate

How to Estimate Student Loan Repayment

Use a single balance and constant rate for a transparent amortization scenario.

Select a display currency.

Confirm how extra payments are handled

Servicer allocation, paid-ahead status and instructions can affect real posting. This model applies the extra amount to the balance every month.

Standard Amortization, Not a Federal Plan Calculator

The standard payment is the level amount that amortizes principal over the entered term at a constant monthly rate. The optional extra amount is added each month, and the final payment is reduced to the remaining amount due. The calculator compares that simulated payoff count with the entered standard term. It does not use income, family size, loan type, disbursement date or program rules, so it cannot calculate income-driven plans or forgiveness.

Student Loan Repayment Examples

Ten-year fixed scenario with extra payment

Balance, rate, term and extra

principal:30000

annualRate:5%

termMonths:120

extraPayment:100

Fixed-rate payoff estimate

$418.20 modeled monthly; about 86 months

The rounded standard payment is $318.20. A recurring $100 extra shortens this deterministic scenario by about 34 months.

Zero-rate boundary

Balance, rate, term and extra

principal:12000

annualRate:0%

termMonths:12

extraPayment:500

Fixed-rate payoff estimate

$1,500 monthly; 8 months

There is no interest, so total modeled payments remain $12,000.

Use official tools for federal options

StudentAid.gov Loan Simulator is the appropriate source for current federal repayment-plan comparisons.

Frequently Asked Questions

No. It uses standard fixed amortization and has no income, household or federal-program inputs.

Still have questions about this calculation?

Try the Calculator

Student Loan Amortization Formula

The engine uses a fixed nominal rate and cents-rounded monthly simulation.

Formula

PMT = P × r / (1 − (1+r)^−n)

Standard payment

PMT = P × r / (1 − (1+r)^−n)

Monthly interest

rounded opening balance × r

Modeled payment

rounded standard payment + recurring extra

Months saved

entered standard term − simulated payoff months

Scientific Background

Federal Student Aid's Loan Simulator incorporates federal loan data and program rules that this generic amortization model intentionally omits. CFPB guidance also advises borrowers to understand repayment and contact their servicer. Use official tools for program decisions.

Sources & review

Student Loan Repayment Calculator documents the references behind its formulas and assumptions. Always treat results as educational estimates, not personalized professional advice.

Last reviewed

July 21, 2026

Federal Student Aid
U.S. Department of Education — StudentAid.gov
https://studentaid.gov/loan-simulator/
Consumer financial tools
Consumer Financial Protection Bureau (CFPB)
https://www.consumerfinance.gov/paying-for-college/repay-student-debt/
Free Calculator Hub methodology
Free Calculator Hub
/methodology

See our methodology and corrections policy.