Know the real cost
of your student loan

See your monthly payment, total interest, and exactly how much you save by paying off early — in seconds.

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10 yrs
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Monthly Payment
Total Repaid
Total Interest
Payoff Date

How much could you save by paying a little more each month?

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Smart ways to cut your loan cost

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Make one extra payment per year

Paying one additional monthly payment annually can shave 1–2 years off a 10-year loan and save thousands in interest.

Pay bi-weekly instead of monthly

Split your payment in half and pay every two weeks. You'll make 26 half-payments (13 full) per year without noticing.

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Refinance when rates drop

If your credit score improves or rates fall, refinancing a $30,000 loan from 7% to 5% saves over $3,000 over 10 years.

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Auto-pay discount

Many servicers offer a 0.25% rate reduction for enrolling in autopay. Small, but completely free.

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Income-driven repayment

US federal IDR plans cap payments at 5–10% of discretionary income and may forgive remaining balances after 20–25 years.

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Public Service Loan Forgiveness

Work for a qualifying employer for 10 years while making payments and your remaining federal balance is forgiven tax-free.

Frequently asked questions

How is the monthly payment calculated?

We use the standard amortization formula: M = P × [r(1+r)ⁿ] / [(1+r)ⁿ−1] where P is principal, r is monthly interest rate, and n is number of payments. This matches the method used by all major loan servicers.

What's a typical interest rate for a student loan?

US federal undergraduate loans for 2024–25 are set at 6.53%. Graduate loans are 8.08%. Private loans range from ~4–15% depending on your credit. If your rate is above 7–8%, refinancing is worth exploring once you have stable income.

Should I pay off my student loan early?

If your rate is above 6–7%, early payoff usually beats investing. Below 5%, you may earn more in an index fund. Use the calculator above to see your exact savings — then decide.

Can I deduct student loan interest on my taxes?

In the US you can deduct up to $2,500/year if your MAGI is below $75,000 (single) or $155,000 (married filing jointly). It's an above-the-line deduction — no itemizing needed.

What happens if I miss a payment?

Federal loans enter delinquency after one missed payment and default after 270 days. Default triggers wage garnishment and credit damage. Income-driven plans can lower payments to $0 if needed — always explore these first.

Does this work for UK student loans?

UK loans are income-contingent (9% of earnings above threshold), not fixed monthly amounts. This calculator applies to US federal/private loans and most international private loans.

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