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Student Loan Payoff Calculator

See how extra monthly payments eliminate your debt years early and save thousands in interest.

Your Loan Details
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Your Payoff Summary
Months to Payoff
Time to Payoff
Total Interest
Interest Saved
Compare Extra Payment Scenarios
Monthly Payment Payoff Total Interest Interest Saved Time Saved
Amortization Schedule
Month Payment Principal Interest Balance

How Extra Payments Work

Every extra dollar you put toward your principal directly reduces the balance that accrues interest next month. This creates a compounding effect: smaller balance → less interest → more of each payment hits principal → balance shrinks even faster.

Federal student loan rates (2025–2026)

Undergraduate Direct Subsidized/Unsubsidized: 6.53% | Graduate Direct Unsubsidized: 8.08% | Direct PLUS Loans: 9.08%

Refinancing vs. extra payments

If you have federal loans, refinancing to a private loan eliminates access to income-driven repayment, forgiveness programs, and deferment. Run the numbers, but be cautious about giving up federal protections. For private loans, refinancing when rates drop makes more sense.

When extra payments hurt

If your employer matches 401(k) contributions, invest there first — that's an instant 50–100% return. If you have higher-interest debt (credit cards at 20%+), pay that down first. Student loans at 5–7% are low enough that investing in an index fund often wins long-term.

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