Student Loan Calculator
Calculate student loan repayment
Student Loan Calculator tool
10-year fixed payments
Student Loan Results
Monthly Payment:
$0.00
Payoff Time:
N/A
Total Interest:
$0.00
Total Paid:
$0.00
Student Loan Calculator: key facts
- What it does
- Calculate student loan repayment
- Category
- Financial Calculators
- Cost
- Free, with no account, sign-up, or install.
- Your data
- Runs entirely in your browser — the files and text you enter are never uploaded to a server.
- Last reviewed
- . Report an incorrect result.
Understanding the Student Loan Calculator
Student debt rarely comes with a clear picture of the road ahead. This calculator takes a loan balance, an interest rate, and a repayment plan, then builds the full payoff story: your monthly payment, how long it takes, the total interest, and a month-by-month amortization schedule you can expand and inspect.
Graduates use it to compare what Standard, Graduated, and Extended plans really cost over time; prospective borrowers use it to understand the long-term weight of a balance before signing. The detailed schedule is the standout — instead of a single payment figure, you can watch the balance fall and see how much of each payment is interest versus principal. Seeing those early payments dominated by interest is often the nudge that makes extra principal payments feel worthwhile, even when the plan's minimum looks manageable.
Getting a result
- Enter your student loan amount.
- Enter the annual interest rate.
- Choose a repayment plan: Standard (10-year fixed), Graduated (payments that rise over time), or Extended (25-year fixed).
- Read your monthly payment, payoff time, total interest, and total paid.
- Expand the payment schedule to see each month's principal, interest, and remaining balance.
What each repayment plan does to the maths
The standard and extended plans both use the ordinary amortisation formula, differing only in how many months they spread the balance across. Longer terms reduce the monthly figure and raise the total interest, because interest keeps accruing on a balance that falls more slowly.
The graduated plan works differently and is worth understanding before choosing it. The tool starts the payment at 80% of the standard amount and then grows it by 2% for each year that passes, so early payments are deliberately light and later ones heavier. That shape suits an income expected to rise, but it means less principal is cleared at the start, when the balance — and therefore the interest charge — is at its largest.
Whichever plan is selected, the schedule is built month by month: interest is the outstanding balance times the monthly rate, and whatever the payment leaves over reduces the balance.
- A 30,000 balance at 6.8% on the standard ten-year plan pays 345.24 a month, 41,428.92 in total, and 11,428.92 in interest.
- Stretching the same balance over twenty years lowers the monthly figure to about 229 but roughly doubles the interest paid.
- On the graduated plan that 30,000 starts nearer 276 a month and climbs from there, costing more overall than the standard plan for the same term.
Reasons to use it here
- It generates a full amortization schedule, so you can see exactly how each payment splits between interest and principal over the life of the loan.
- It models three distinct plans — including a graduated plan whose payments rise over time — rather than assuming one fixed structure.
- Payoff time is shown in plain years-and-months, and total interest is highlighted so the true cost of borrowing is unmistakable.
- All calculations are client-side, keeping your loan details private.
What this cannot model about student debt
Income-driven repayment is the largest omission. Plans that set the payment as a share of discretionary income, and that may forgive a remaining balance after a qualifying period, cannot be represented by a fixed-payment formula at all. If you are on or considering one, the figures here will not describe it.
Several other features of real student lending are outside the calculation: subsidised versus unsubsidised interest treatment, interest capitalising at the end of a deferment or grace period, multiple loans at different rates that a single blended figure hides, origination fees, and forgiveness tied to public service employment. Consolidation changes the rate and the term together, so it needs modelling as a new loan rather than as an adjustment.
Because eligibility and forgiveness rules are set by statute and revised periodically, confirm anything consequential against your loan servicer or the official programme documentation rather than against an estimate from this page.
Frequently Asked Questions
What is the difference between Standard, Graduated, and Extended plans?
Standard spreads fixed payments over 10 years, the fastest and cheapest in total interest. Graduated starts with lower payments that increase over time, easing early budgets. Extended stretches payments over 25 years, lowering the monthly amount but raising total interest substantially.
Why does a longer repayment plan cost more?
A longer term means the balance accrues interest for more years, so even with smaller monthly payments you pay more interest overall. The calculator's total-interest figure makes this trade-off between affordability and total cost concrete.
Does paying extra each month help?
Yes — extra payments go straight to principal, shrinking the balance that future interest is charged on and shortening the term. While this tool models the standard plans, you can approximate the effect by entering a shorter term or comparing scenarios.
