Student Loan Repayment Calculator
See your monthly payment, payoff date, and total interest, with optional extra payments
Between 0 and 100.
Whole years, 1 to 50.
The date your first payment is due, usually after your grace period ends (often 6 months after you leave school). Later payments fall on the same day each month. It only puts dates on the table and the payoff; it does not change your payment or interest. Clear it to use the 1st of next month.
Grace periods and interest: on many loans, interest that builds up during a grace period or deferment is capitalized (added to the balance) when repayment starts. If that applies to you, enter the larger balance you will owe at that point.
$325.58
Standard Monthly Payment
10y 0m
Payoff Time
$9,069.36
Total Interest Paid
Payoff
Nov 2036
First payment Dec 1, 2026. Last payment Nov 1, 2036.
Amortization table (120 months)
| Month | Date | Payment | Interest | Principal | Balance |
|---|---|---|---|---|---|
| 1 | Dec 1, 2026 | $325.58 | $137.50 | $188.08 | $29,811.92 |
| 2 | Jan 1, 2027 | $325.58 | $136.64 | $188.94 | $29,622.98 |
| 3 | Feb 1, 2027 | $325.58 | $135.77 | $189.81 | $29,433.17 |
| 4 | Mar 1, 2027 | $325.58 | $134.90 | $190.68 | $29,242.49 |
| 5 | Apr 1, 2027 | $325.58 | $134.03 | $191.55 | $29,050.94 |
| 6 | May 1, 2027 | $325.58 | $133.15 | $192.43 | $28,858.51 |
| 7 | Jun 1, 2027 | $325.58 | $132.27 | $193.31 | $28,665.20 |
| 8 | Jul 1, 2027 | $325.58 | $131.38 | $194.20 | $28,471.00 |
| 9 | Aug 1, 2027 | $325.58 | $130.49 | $195.09 | $28,275.91 |
| 10 | Sep 1, 2027 | $325.58 | $129.60 | $195.98 | $28,079.93 |
| 11 | Oct 1, 2027 | $325.58 | $128.70 | $196.88 | $27,883.05 |
| 12 | Nov 1, 2027 | $325.58 | $127.80 | $197.78 | $27,685.27 |
Compare with an income-driven plan (optional)
Enter your yearly adjusted gross income (AGI; use the joint figure if you file jointly) to see the Repayment Assistance Plan beside your standard payment. Income is held flat, so this is an illustration, not a prediction.
Refinance comparison (optional)
How this was calculated
1. Standard payment
Loan x rate / (1 - (1 + rate) ^ -payments)
Using loan = $30,000.00; rate per month = 0.4583%; payments = 120
Result: $325.58
Plans compared
| Plan | Monthly payment | Months paying | Total paid | Interest paid | Forgiven at the end | How it is worked out |
|---|---|---|---|---|---|---|
| Standard | $325.58 | 120 (10.0 yrs) | $39,069.36 | $9,069.36 | None | Fixed payment for the term you entered |
The results above are standard fixed repayment. Federal plans as of 2026-10-30: Standard (a Tiered Standard plan for new loans from 1 July 2026), the Repayment Assistance Plan (RAP), Income-Based Repayment (IBR), and, for older loans, PAYE and ICR (both close 1 July 2028). SAVE ended by court order on 10 March 2026. Check studentaid.gov for your own loans. (Plan list checked 2026-10-30.)
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About Student Loan Repayment Calculator
Calculates a student loan's standard monthly payment, payoff time, and total interest, and models how paying extra each month, or a one-time lump sum, changes both the payoff time and total interest paid. The amortization table, payoff date and CSV use real calendar dates that start from your first payment date.
Enter your loan balance, interest rate, and term, and your standard payment is calculated. Add an optional extra monthly payment and an optional one-time lump sum (and the month you will pay it) to see the payoff time and interest savings. Set the first payment date to the day repayment begins (after any grace period) to see the real date of every payment and your payoff date; it only labels the schedule and does not change the amounts.
The main results model standard fixed repayment. Below them you can add your income to see the Repayment Assistance Plan (and IBR for older loans) beside it, or a refinance, with the plan list dated. Check studentaid.gov for your own loans.
Watch: Student Loan Repayment Calculator in Action
- Does this model income-driven repayment plans?
- No — this models standard fixed repayment. Federal income-driven repayment plans use a completely different, income-based formula, so check studentaid.gov directly if you're on or considering one of those plans.
- What should I enter as the first payment date?
- Enter the date your first payment is due, which your servicer shows on your account. For many federal loans it comes after a grace period, often six months after you leave school. If you do not know it, leave the suggested date, the 1st of next month. The table, the payoff date and the CSV then show real calendar dates from it.
- Does the first payment date change my payment or total interest?
- No. The date only labels the schedule. The payment and the interest are worked out on whole monthly periods, so they stay the same for any date. Interest that builds up before your first payment is not added by this calculator, so enter the larger balance you will owe at that point if it applies to you.
- What happens if my payment date is the 31st?
- A payment on the 29th, 30th or 31st moves to the last day of shorter months, such as Feb 28 (Feb 29 in a leap year) or Apr 30, and goes back to your day in longer months, so the dates never drift earlier. The payment amount does not change.
How to use Student Loan Repayment Calculator
Enter the loan balance, the interest rate and the standard term in whole years, and the monthly payment appears at once. Set the first payment date to the day repayment starts; it begins as the 1st of next month, and for a federal loan it is usually the end of the grace period, often six months after you leave school. The table, the payoff box and the CSV then show real calendar dates. To model paying faster, add an extra monthly amount, a one-time lump sum and the payment number you will make it in. The result shows how many months earlier you finish, the interest you save and the new payoff date next to the original one. Interest that built up during school or a grace period is often added to the balance when repayment starts, so enter that larger balance if it applies to you.
When to use it
Use it when you are deciding how aggressively to repay: see the standard payment, the month the loan would end and what an extra 50 or 100 dollars a month would change. It also helps when you are about to graduate and want to know what the loan will cost per month and in which month and year the last payment would fall. The lump-sum box suits a tax refund, a bonus or a gift you plan to put toward the balance in one go.
When not to use it
This models standard fixed repayment of one loan at one rate. Federal income-driven plans, forgiveness programs, deferment and forbearance work differently, so for those use the official studentaid.gov estimators. If you have several loans with different rates, run each one separately or the combined figures will only be rough. The first payment date only labels the schedule, so it cannot show interest that accrues between disbursement and the first payment.
Tips for best results
Ask your servicer for the exact date of your first payment and enter it, rather than counting months yourself. Then compare the original and the new payoff dates after adding an extra payment: seeing the loan end a year or two earlier on the calendar makes the interest saving easier to judge. If your loans have different rates, putting extra money toward the highest-rate loan first usually saves the most interest.
Limitations
The schedule assumes every payment is made on time for the full amount, with a fixed rate throughout. Interest is worked out on whole monthly periods and rounded to cents each month, so your servicer's figures can differ by a few cents or dollars, especially if it charges daily interest. Payment dates follow the calendar: a payment day of the 29th to 31st moves to the last day of shorter months and returns to its day afterwards. Treat every figure as an estimate and confirm it with your servicer.
Privacy
Everything is calculated in your browser from the numbers you type. The balance, the rate and the dates are not sent to a server or stored, and clearing the page clears them.
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