Student Loan Calculator

Calculate your student loan payments and total interest.

Updated April 2026

Loan Details

$
% / year
2025 Data
IRS-Sourced
Free Forever

How It Works

01

Enter Loan Details

Input your loan balance, interest rate, and term.

02

Choose Your State

Select your state for localized repayment info.

03

Review Your Plan

See monthly payments, total interest, and payoff date.

How Student Loan Repayment Works

Federal student loans use a standard amortization formula: each monthly payment covers accrued interest plus reduces principal. On the Standard Repayment Plan, you pay equal amounts over 10 years. Income-driven plans (SAVE, IBR, PAYE) cap payments at 5–10% of discretionary income and forgive remaining balances after 20–25 years. PSLF forgives after 10 years for qualifying public service employees.

Standard Plan

Fixed payments over 10 years. Highest monthly payment but lowest total interest — you pay off faster.

Income-Driven

SAVE, IBR, PAYE plans cap payments at 5–10% of discretionary income. Balance forgiven after 20–25 years.

PSLF

Public Service Loan Forgiveness: 120 payments on income-driven plan while working for qualifying employer. Tax-free forgiveness.

Related guides

Disclaimer: For informational purposes only. Not tax, legal, or financial advice.