Student Loan Calculator

Estimate your monthly student loan payment on a level repayment plan, and see how much paying a little extra each month saves. Works for federal loans on the standard plan and for most private student loans.

Monthly payment$397.42120 payments

Total interest: $12,690.02
Total of payments: $47,690.02
Time to pay off: 10 yr

Shows a level (standard) repayment plan. Federal income-driven plans set payments from your income instead, and their rules change; check studentaid.gov for those.

Amortization schedule

Year	Payment	Principal	Interest	Balance
1	$4,769.04	$2,569.70	$2,199.34	$32,430.30
2	$4,769.04	$2,741.79	$2,027.25	$29,688.51
3	$4,769.04	$2,925.44	$1,843.60	$26,763.07
4	$4,769.04	$3,121.35	$1,647.69	$23,641.72
5	$4,769.04	$3,330.38	$1,438.66	$20,311.34
6	$4,769.04	$3,553.44	$1,215.60	$16,757.90
7	$4,769.04	$3,791.42	$977.62	$12,966.48
8	$4,769.04	$4,045.32	$723.72	$8,921.16
9	$4,769.04	$4,316.24	$452.80	$4,604.92
10	$4,768.66	$4,604.92	$163.74	$0.00

Month	Payment	Principal	Interest	Balance
1	$397.42	$207.84	$189.58	$34,792.16
2	$397.42	$208.96	$188.46	$34,583.20
3	$397.42	$210.09	$187.33	$34,373.11
4	$397.42	$211.23	$186.19	$34,161.88
5	$397.42	$212.38	$185.04	$33,949.50
6	$397.42	$213.53	$183.89	$33,735.97
7	$397.42	$214.68	$182.74	$33,521.29
8	$397.42	$215.85	$181.57	$33,305.44
9	$397.42	$217.02	$180.40	$33,088.42
10	$397.42	$218.19	$179.23	$32,870.23
11	$397.42	$219.37	$178.05	$32,650.86
12	$397.42	$220.56	$176.86	$32,430.30
13	$397.42	$221.76	$175.66	$32,208.54
14	$397.42	$222.96	$174.46	$31,985.58
15	$397.42	$224.16	$173.26	$31,761.42
16	$397.42	$225.38	$172.04	$31,536.04
17	$397.42	$226.60	$170.82	$31,309.44
18	$397.42	$227.83	$169.59	$31,081.61
19	$397.42	$229.06	$168.36	$30,852.55
20	$397.42	$230.30	$167.12	$30,622.25
21	$397.42	$231.55	$165.87	$30,390.70
22	$397.42	$232.80	$164.62	$30,157.90
23	$397.42	$234.06	$163.36	$29,923.84
24	$397.42	$235.33	$162.09	$29,688.51
25	$397.42	$236.61	$160.81	$29,451.90
26	$397.42	$237.89	$159.53	$29,214.01
27	$397.42	$239.18	$158.24	$28,974.83
28	$397.42	$240.47	$156.95	$28,734.36
29	$397.42	$241.78	$155.64	$28,492.58
30	$397.42	$243.09	$154.33	$28,249.49
31	$397.42	$244.40	$153.02	$28,005.09
32	$397.42	$245.73	$151.69	$27,759.36
33	$397.42	$247.06	$150.36	$27,512.30
34	$397.42	$248.40	$149.02	$27,263.90
35	$397.42	$249.74	$147.68	$27,014.16
36	$397.42	$251.09	$146.33	$26,763.07
37	$397.42	$252.45	$144.97	$26,510.62
38	$397.42	$253.82	$143.60	$26,256.80
39	$397.42	$255.20	$142.22	$26,001.60
40	$397.42	$256.58	$140.84	$25,745.02
41	$397.42	$257.97	$139.45	$25,487.05
42	$397.42	$259.37	$138.05	$25,227.68
43	$397.42	$260.77	$136.65	$24,966.91
44	$397.42	$262.18	$135.24	$24,704.73
45	$397.42	$263.60	$133.82	$24,441.13
46	$397.42	$265.03	$132.39	$24,176.10
47	$397.42	$266.47	$130.95	$23,909.63
48	$397.42	$267.91	$129.51	$23,641.72
49	$397.42	$269.36	$128.06	$23,372.36
50	$397.42	$270.82	$126.60	$23,101.54
51	$397.42	$272.29	$125.13	$22,829.25
52	$397.42	$273.76	$123.66	$22,555.49
53	$397.42	$275.24	$122.18	$22,280.25
54	$397.42	$276.74	$120.68	$22,003.51
55	$397.42	$278.23	$119.19	$21,725.28
56	$397.42	$279.74	$117.68	$21,445.54
57	$397.42	$281.26	$116.16	$21,164.28
58	$397.42	$282.78	$114.64	$20,881.50
59	$397.42	$284.31	$113.11	$20,597.19
60	$397.42	$285.85	$111.57	$20,311.34
61	$397.42	$287.40	$110.02	$20,023.94
62	$397.42	$288.96	$108.46	$19,734.98
63	$397.42	$290.52	$106.90	$19,444.46
64	$397.42	$292.10	$105.32	$19,152.36
65	$397.42	$293.68	$103.74	$18,858.68
66	$397.42	$295.27	$102.15	$18,563.41
67	$397.42	$296.87	$100.55	$18,266.54
68	$397.42	$298.48	$98.94	$17,968.06
69	$397.42	$300.09	$97.33	$17,667.97
70	$397.42	$301.72	$95.70	$17,366.25
71	$397.42	$303.35	$94.07	$17,062.90
72	$397.42	$305.00	$92.42	$16,757.90
73	$397.42	$306.65	$90.77	$16,451.25
74	$397.42	$308.31	$89.11	$16,142.94
75	$397.42	$309.98	$87.44	$15,832.96
76	$397.42	$311.66	$85.76	$15,521.30
77	$397.42	$313.35	$84.07	$15,207.95
78	$397.42	$315.04	$82.38	$14,892.91
79	$397.42	$316.75	$80.67	$14,576.16
80	$397.42	$318.47	$78.95	$14,257.69
81	$397.42	$320.19	$77.23	$13,937.50
82	$397.42	$321.93	$75.49	$13,615.57
83	$397.42	$323.67	$73.75	$13,291.90
84	$397.42	$325.42	$72.00	$12,966.48
85	$397.42	$327.18	$70.24	$12,639.30
86	$397.42	$328.96	$68.46	$12,310.34
87	$397.42	$330.74	$66.68	$11,979.60
88	$397.42	$332.53	$64.89	$11,647.07
89	$397.42	$334.33	$63.09	$11,312.74
90	$397.42	$336.14	$61.28	$10,976.60
91	$397.42	$337.96	$59.46	$10,638.64
92	$397.42	$339.79	$57.63	$10,298.85
93	$397.42	$341.63	$55.79	$9,957.22
94	$397.42	$343.49	$53.93	$9,613.73
95	$397.42	$345.35	$52.07	$9,268.38
96	$397.42	$347.22	$50.20	$8,921.16
97	$397.42	$349.10	$48.32	$8,572.06
98	$397.42	$350.99	$46.43	$8,221.07
99	$397.42	$352.89	$44.53	$7,868.18
100	$397.42	$354.80	$42.62	$7,513.38
101	$397.42	$356.72	$40.70	$7,156.66
102	$397.42	$358.65	$38.77	$6,798.01
103	$397.42	$360.60	$36.82	$6,437.41
104	$397.42	$362.55	$34.87	$6,074.86
105	$397.42	$364.51	$32.91	$5,710.35
106	$397.42	$366.49	$30.93	$5,343.86
107	$397.42	$368.47	$28.95	$4,975.39
108	$397.42	$370.47	$26.95	$4,604.92
109	$397.42	$372.48	$24.94	$4,232.44
110	$397.42	$374.49	$22.93	$3,857.95
111	$397.42	$376.52	$20.90	$3,481.43
112	$397.42	$378.56	$18.86	$3,102.87
113	$397.42	$380.61	$16.81	$2,722.26
114	$397.42	$382.67	$14.75	$2,339.59
115	$397.42	$384.75	$12.67	$1,954.84
116	$397.42	$386.83	$10.59	$1,568.01
117	$397.42	$388.93	$8.49	$1,179.08
118	$397.42	$391.03	$6.39	$788.05
119	$397.42	$393.15	$4.27	$394.90
120	$397.04	$394.90	$2.14	$0.00

Standard repayment

The federal standard plan spreads repayment over 10 years with a fixed monthly payment. Private loans commonly use 5 to 20 years. Either way the payment is a regular amortizing loan payment, which is what this calculator shows. If you have several loans at different rates, you can enter the total balance with a weighted-average rate for a close estimate.

Example

$35,000 at 6.5% over 10 years is $397.42 a month, with $12,690 in total interest.

Income-driven plans

Federal income-driven repayment plans set the payment from your income and family size instead, and their rules have changed several times. This calculator does not model them. Check studentaid.gov for current plans and use its official Loan Simulator.

Frequently asked questions

Do extra payments go to principal?

For federal loans, extra payments first cover any accrued interest, then principal. You can tell your servicer to apply them to a specific loan, usually the one with the highest rate.

Should I refinance federal loans into a private loan?

A lower rate saves interest, but refinancing federal loans privately gives up federal protections such as income-driven plans, deferment and forgiveness programs. Weigh both before deciding.

Is student loan interest tax-deductible?

In the U.S., up to $2,500 of student loan interest a year may be deductible, subject to income limits. See IRS Publication 970 or a tax professional.

Sources

Last reviewed October 25, 2026. How we review and test pages.

PmtCalc provides estimates for education and planning only. Results are not an offer of credit, a loan approval, or financial, tax or legal advice. Actual terms depend on the lender and your situation. How we calculate and test these results.