Student loan payoff calculator
The answer
Adding $100.00 a month to a $340.00 payment on a $30,000.00 balance at 6.53% APR gets you there 2 yr 11 mo sooner, around Dec 2033, saving $3,394.25 in interest.
- Interest saved
- $3,394.25
- Without the extra
- 10 yr 1 mo · $10,986.90
An estimate from the inputs shown, not a promise of a particular date. How we calculate this.
Enter the balance, the rate and what you pay now, then add an extra amount. The answer above is the same payoff engine run with the extra and again without it, and the gap between those runs, if any, is what the extra buys.
A student loan is an installment loan: a level payment, a set term, interest charged on what is still owed. Paying above the required amount can shorten the term and, where interest is being charged, reduce it — provided the extra reaches the principal rather than being held against a future payment. The answer above says which of those applies to your numbers.
Assumptions
- Interest accrues once a month, before that month's payment.
- The APR stays at 6.53% for the whole term.
- No new spending, fees, penalty rate or promotional rate.
- You pay the payment plus the extra in full, on time, every month.
Month by month
What is left at the end of each month, after that month's payment — from the same engine run as the answer above.
| Month | Date | With the extra | Without the extra |
|---|---|---|---|
| Start | Oct 2026 | $30,000.00 | $30,000.00 |
| 1 | Nov 2026 | $29,723.25 | $29,823.25 |
| 2 | Dec 2026 | $29,444.99 | $29,645.54 |
| 3 | Jan 2027 | $29,165.22 | $29,466.86 |
| 4 | Feb 2027 | $28,883.93 | $29,287.21 |
| 5 | Mar 2027 | $28,601.11 | $29,106.58 |
| 6 | Apr 2027 | $28,316.75 | $28,924.97 |
| 7 | May 2027 | $28,030.84 | $28,742.37 |
| 8 | Jun 2027 | $27,743.37 | $28,558.77 |
| 9 | Jul 2027 | $27,454.34 | $28,374.18 |
| 10 | Aug 2027 | $27,163.74 | $28,188.58 |
| 11 | Sep 2027 | $26,871.55 | $28,001.98 |
| 12 | Oct 2027 | $26,577.78 | $27,814.35 |
Show the full schedule — all 10 years 1 month
| Month | Date | With the extra | Without the extra |
|---|---|---|---|
| Start | Oct 2026 | $30,000.00 | $30,000.00 |
| 1 | Nov 2026 | $29,723.25 | $29,823.25 |
| 2 | Dec 2026 | $29,444.99 | $29,645.54 |
| 3 | Jan 2027 | $29,165.22 | $29,466.86 |
| 4 | Feb 2027 | $28,883.93 | $29,287.21 |
| 5 | Mar 2027 | $28,601.11 | $29,106.58 |
| 6 | Apr 2027 | $28,316.75 | $28,924.97 |
| 7 | May 2027 | $28,030.84 | $28,742.37 |
| 8 | Jun 2027 | $27,743.37 | $28,558.77 |
| 9 | Jul 2027 | $27,454.34 | $28,374.18 |
| 10 | Aug 2027 | $27,163.74 | $28,188.58 |
| 11 | Sep 2027 | $26,871.55 | $28,001.98 |
| 12 | Oct 2027 | $26,577.78 | $27,814.35 |
| 13 | Nov 2027 | $26,282.41 | $27,625.71 |
| 14 | Dec 2027 | $25,985.43 | $27,436.04 |
| 15 | Jan 2028 | $25,686.83 | $27,245.34 |
| 16 | Feb 2028 | $25,386.61 | $27,053.60 |
| 17 | Mar 2028 | $25,084.76 | $26,860.82 |
| 18 | Apr 2028 | $24,781.26 | $26,666.98 |
| 19 | May 2028 | $24,476.11 | $26,472.10 |
| 20 | Jun 2028 | $24,169.30 | $26,276.15 |
| 21 | Jul 2028 | $23,860.82 | $26,079.13 |
| 22 | Aug 2028 | $23,550.67 | $25,881.05 |
| 23 | Sep 2028 | $23,238.82 | $25,681.88 |
| 24 | Oct 2028 | $22,925.28 | $25,481.64 |
| 25 | Nov 2028 | $22,610.03 | $25,280.30 |
| 26 | Dec 2028 | $22,293.07 | $25,077.87 |
| 27 | Jan 2029 | $21,974.38 | $24,874.33 |
| 28 | Feb 2029 | $21,653.95 | $24,669.69 |
| 29 | Mar 2029 | $21,331.79 | $24,463.93 |
| 30 | Apr 2029 | $21,007.87 | $24,257.06 |
| 31 | May 2029 | $20,682.19 | $24,049.06 |
| 32 | Jun 2029 | $20,354.73 | $23,839.92 |
| 33 | Jul 2029 | $20,025.50 | $23,629.65 |
| 34 | Aug 2029 | $19,694.47 | $23,418.24 |
| 35 | Sep 2029 | $19,361.64 | $23,205.67 |
| 36 | Oct 2029 | $19,027.00 | $22,991.95 |
| 37 | Nov 2029 | $18,690.54 | $22,777.06 |
| 38 | Dec 2029 | $18,352.24 | $22,561.01 |
| 39 | Jan 2030 | $18,012.11 | $22,343.78 |
| 40 | Feb 2030 | $17,670.13 | $22,125.37 |
| 41 | Mar 2030 | $17,326.28 | $21,905.76 |
| 42 | Apr 2030 | $16,980.57 | $21,684.97 |
| 43 | May 2030 | $16,632.97 | $21,462.97 |
| 44 | Jun 2030 | $16,283.48 | $21,239.77 |
| 45 | Jul 2030 | $15,932.09 | $21,015.34 |
| 46 | Aug 2030 | $15,578.79 | $20,789.70 |
| 47 | Sep 2030 | $15,223.56 | $20,562.83 |
| 48 | Oct 2030 | $14,866.40 | $20,334.73 |
| 49 | Nov 2030 | $14,507.30 | $20,105.38 |
| 50 | Dec 2030 | $14,146.24 | $19,874.79 |
| 51 | Jan 2031 | $13,783.22 | $19,642.94 |
| 52 | Feb 2031 | $13,418.23 | $19,409.83 |
| 53 | Mar 2031 | $13,051.24 | $19,175.46 |
| 54 | Apr 2031 | $12,682.26 | $18,939.80 |
| 55 | May 2031 | $12,311.28 | $18,702.87 |
| 56 | Jun 2031 | $11,938.27 | $18,464.64 |
| 57 | Jul 2031 | $11,563.24 | $18,225.12 |
| 58 | Aug 2031 | $11,186.16 | $17,984.29 |
| 59 | Sep 2031 | $10,807.03 | $17,742.16 |
| 60 | Oct 2031 | $10,425.84 | $17,498.71 |
| 61 | Nov 2031 | $10,042.57 | $17,253.93 |
| 62 | Dec 2031 | $9,657.22 | $17,007.82 |
| 63 | Jan 2032 | $9,269.77 | $16,760.37 |
| 64 | Feb 2032 | $8,880.22 | $16,511.57 |
| 65 | Mar 2032 | $8,488.54 | $16,261.42 |
| 66 | Apr 2032 | $8,094.73 | $16,009.91 |
| 67 | May 2032 | $7,698.78 | $15,757.03 |
| 68 | Jun 2032 | $7,300.67 | $15,502.78 |
| 69 | Jul 2032 | $6,900.40 | $15,247.14 |
| 70 | Aug 2032 | $6,497.95 | $14,990.11 |
| 71 | Sep 2032 | $6,093.31 | $14,731.68 |
| 72 | Oct 2032 | $5,686.47 | $14,471.85 |
| 73 | Nov 2032 | $5,277.41 | $14,210.60 |
| 74 | Dec 2032 | $4,866.13 | $13,947.93 |
| 75 | Jan 2033 | $4,452.61 | $13,683.83 |
| 76 | Feb 2033 | $4,036.84 | $13,418.29 |
| 77 | Mar 2033 | $3,618.81 | $13,151.31 |
| 78 | Apr 2033 | $3,198.50 | $12,882.87 |
| 79 | May 2033 | $2,775.90 | $12,612.98 |
| 80 | Jun 2033 | $2,351.01 | $12,341.61 |
| 81 | Jul 2033 | $1,923.80 | $12,068.77 |
| 82 | Aug 2033 | $1,494.27 | $11,794.44 |
| 83 | Sep 2033 | $1,062.40 | $11,518.63 |
| 84 | Oct 2033 | $628.18 | $11,241.31 |
| 85 | Nov 2033 | $191.60 | $10,962.48 |
| 86 | Dec 2033 | $0.00 | $10,682.13 |
| 87 | Jan 2034 | — | $10,400.26 |
| 88 | Feb 2034 | — | $10,116.86 |
| 89 | Mar 2034 | — | $9,831.91 |
| 90 | Apr 2034 | — | $9,545.41 |
| 91 | May 2034 | — | $9,257.35 |
| 92 | Jun 2034 | — | $8,967.73 |
| 93 | Jul 2034 | — | $8,676.53 |
| 94 | Aug 2034 | — | $8,383.74 |
| 95 | Sep 2034 | — | $8,089.36 |
| 96 | Oct 2034 | — | $7,793.38 |
| 97 | Nov 2034 | — | $7,495.79 |
| 98 | Dec 2034 | — | $7,196.58 |
| 99 | Jan 2035 | — | $6,895.74 |
| 100 | Feb 2035 | — | $6,593.27 |
| 101 | Mar 2035 | — | $6,289.15 |
| 102 | Apr 2035 | — | $5,983.37 |
| 103 | May 2035 | — | $5,675.93 |
| 104 | Jun 2035 | — | $5,366.82 |
| 105 | Jul 2035 | — | $5,056.02 |
| 106 | Aug 2035 | — | $4,743.53 |
| 107 | Sep 2035 | — | $4,429.35 |
| 108 | Oct 2035 | — | $4,113.45 |
| 109 | Nov 2035 | — | $3,795.83 |
| 110 | Dec 2035 | — | $3,476.49 |
| 111 | Jan 2036 | — | $3,155.41 |
| 112 | Feb 2036 | — | $2,832.58 |
| 113 | Mar 2036 | — | $2,507.99 |
| 114 | Apr 2036 | — | $2,181.64 |
| 115 | May 2036 | — | $1,853.51 |
| 116 | Jun 2036 | — | $1,523.60 |
| 117 | Jul 2036 | — | $1,191.89 |
| 118 | Aug 2036 | — | $858.37 |
| 119 | Sep 2036 | — | $523.04 |
| 120 | Oct 2036 | — | $185.89 |
| 121 | Nov 2036 | — | $0.00 |
What this does and does not model
Interest on most student loans keeps accruing on the outstanding principal, and interest that accrued while you were in school may have been capitalized — added to the principal, so that it earns interest itself. This calculator charges interest once a month on the balance you enter; a servicer that accrues it on a different schedule will show slightly different figures. Enter today's balance, including any capitalized interest, rather than the amount you originally borrowed.
Income-driven repayment, deferment, forbearance and forgiveness all change the payment and sometimes the balance, and a variable-rate private loan changes the rate. None of those are modelled here. The estimate holds for a fixed-rate loan on a standard schedule, paid in full and on time.
Make sure the extra goes where you think it does
A student-loan payment is generally applied to fees owed, then to interest, then to the principal. An amount above the required payment is sometimes credited against a future payment instead of reducing the principal, which moves the next due date rather than shortening the loan. The Consumer Financial Protection Bureau's guidance is to instruct your lender or servicer to apply the excess directly to the principal balance. The next statement is where you can see whether it did.
If you have several loans
Paying the highest-rate loan ahead of the others costs the least interest in total; clearing the smallest balance ahead of the others removes a whole loan sooner. Both are legitimate orders, and the difference between them on your own loans is measurable rather than a matter of opinion — the comparison pages linked below run both.
Questions about this calculator
Does it work for federal and private loans?
For either, as long as the loan has a fixed rate and a standard level payment. It does not model income-driven repayment, forgiveness, deferment, forbearance or a variable rate.
I have several student loans. What should I enter?
This calculator models a single loan. Enter the loan you want to look at, or use the debt payoff calculator to plan several loans together in snowball or avalanche order.
Will paying extra lower my required payment?
Not in this model: the required payment stays the same and the loan ends sooner. Some servicers apply extra money against a future payment instead, so ask yours to apply it to the principal.
How can I see the effect of the extra month by month?
The schedule under the answer lists the balance each month with the extra and without it, from separate runs of the same engine.
Sources
- Consumer Financial Protection Bureau — How is my student loan payment applied to my account?
- Consumer Financial Protection Bureau — How does interest accrue while I am in school?
Our source and corrections policy explains how these are chosen.
Related
Reviewed 2026-09-19. Every figure on this page is produced by the same payoff engine the Dang! Payoff app runs, from the inputs shown, and is an estimate that holds only if the stated assumptions hold. The dates printed here were computed from a plan starting October 2026; the calculator re-anchors to the current month in your browser, so a date you read with JavaScript disabled is the one for that starting month rather than for today.
Dang! Payoff is a manual-entry debt payoff planner and tracker from Dang Apps LLC. It is not a lender, credit counselling agency, debt-relief, debt-management or debt-settlement service, and nothing here is financial, legal or tax advice or a recommendation about your situation. Your issuer’s or lender’s own terms govern your account.
Methodology · Corrections · Privacy · Terms