Student Loan Calculator
Fixed payments over 10 years
Monthly Payment
$379.84
Total Interest
$10,581.04
Payoff Time
10y 0m
Loan Balance Over Time
| Year | Balance |
|---|---|
| Month 1 | $34,780.57 |
| Month 7 | $33,442.74 |
| Month 13 | $32,067.69 |
| Month 19 | $30,654.40 |
| Month 25 | $29,201.78 |
| Month 31 | $27,708.76 |
| Month 37 | $26,174.21 |
| Month 43 | $24,596.98 |
| Month 49 | $22,975.87 |
| Month 55 | $21,309.66 |
| Month 61 | $19,597.11 |
| Month 67 | $17,836.91 |
| Month 73 | $16,027.76 |
| Month 79 | $14,168.28 |
| Month 85 | $12,257.07 |
| Month 91 | $10,292.70 |
| Month 97 | $8,273.68 |
| Month 103 | $6,198.51 |
| Month 109 | $4,065.61 |
| Month 115 | $1,873.37 |
| Month 120 | $0.00 |
Impact of Extra Payments
+$50.00/month
Save $1,671.74 in interest
Pay off 17 months sooner
+$100.00/month
Save $2,880.48 in interest
Pay off 31 months sooner
+$200.00/month
Save $4,513.89 in interest
Pay off 49 months sooner
Current Federal Student Loan Rates (2025-26)
| Direct Subsidized & Unsubsidized (Undergrad) | 6.39% |
| Direct Unsubsidized (Graduate) | 7.94% |
| Direct PLUS (Parents & Graduate) | 8.94% |
Repayment Strategies
- Make payments during grace period to reduce principal before interest capitalizes
- Consider refinancing if you have good credit and stable income
- Public Service Loan Forgiveness (PSLF) may forgive remaining balance after 120 qualifying payments
- Student loan interest may be tax-deductible (up to $2,500 per year)
- Autopay often provides a 0.25% interest rate reduction
About the Student Loan Calculator
A student loan calculator estimates your monthly payment, total interest, and full repayment cost based on the loan amount, interest rate, and repayment term. Whether you carry federal loans, private loans, or a mix, the tool turns the abstract balance you owe into a concrete monthly figure and shows how much of your money goes to interest versus principal over the life of the loan.
The underlying math is standard amortization: a fixed monthly payment is calculated so the loan is fully paid by the end of the term, with early payments weighted heavily toward interest and later ones toward principal. By adjusting the term, you can see the classic trade-off where a longer repayment period lowers the monthly payment but increases total interest, while a shorter term costs more each month but far less overall.
Borrowers use this calculator to compare the standard 10-year repayment plan against extended or income-driven options, to gauge the impact of making extra principal payments, and to weigh refinancing offers that might lower the rate. It is also handy for students and families estimating future payments before taking on new loans, helping prevent borrowing more than a realistic post-graduation salary can support.
A practical tip is to direct any extra payments specifically toward principal so they shorten the term rather than just paying ahead on interest. For federal loans, be cautious about refinancing into private loans, since doing so forfeits protections like income-driven repayment, deferment, and potential forgiveness programs that a private lender will not offer.
Frequently asked questions
- What is the difference between federal and private student loans?
- Federal loans offer fixed rates, income-driven repayment plans, deferment options, and possible forgiveness. Private loans are issued by banks with rates based on credit, and they generally lack federal borrower protections.
- How does loan term length affect my payments?
- A longer term lowers your monthly payment but increases the total interest paid over the life of the loan. A shorter term raises the monthly amount but saves significantly on interest.
- Should I make extra payments on my student loans?
- Extra payments applied to principal reduce both the balance and future interest, shortening your payoff. Confirm with your servicer that additional amounts go toward principal rather than future scheduled payments.
- Is refinancing student loans a good idea?
- Refinancing can lower your rate if you have strong credit, but refinancing federal loans into a private loan permanently gives up federal protections like income-driven plans and forgiveness. Weigh the rate savings against those benefits.
- What is an income-driven repayment plan?
- Income-driven plans cap federal loan payments at a percentage of your discretionary income and extend the term, lowering monthly costs. Remaining balances may be forgiven after a set number of years, though forgiven amounts can be taxable.
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