Student loan calculator
$397.77/month principal and interest
$12,733 total interest
Principal $35,000 Interest $12,733. 27¢ of every dollar paid goes to interest.
$35,000 over 10 years at 6.52%.
Source: U.S. Department of Education, 2026-27 undergraduate rate (default). An average, not an offer.
| Plan | Payment | Total interest |
|---|---|---|
| Standard (10 years) | $397.77 | $12,733 |
| Tiered Standard (15 years) | $305.27 | $19,949 |
| Extended (15 years) | $305.27 | $19,949 |
| Extended (20 years) | $261.36 | $27,727 |
| Extended (25 years) | $236.76 | $36,028 |
Amortization schedule
First 12 months
| Month | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $207.61 | $190.17 | $34,792.39 |
| 2 | $208.74 | $189.04 | $34,583.66 |
| 3 | $209.87 | $187.90 | $34,373.79 |
| 4 | $211.01 | $186.76 | $34,162.78 |
| 5 | $212.16 | $185.62 | $33,950.62 |
| 6 | $213.31 | $184.47 | $33,737.31 |
| 7 | $214.47 | $183.31 | $33,522.84 |
| 8 | $215.63 | $182.14 | $33,307.21 |
| 9 | $216.81 | $180.97 | $33,090.41 |
| 10 | $217.98 | $179.79 | $32,872.42 |
| 11 | $219.17 | $178.61 | $32,653.26 |
| 12 | $220.36 | $177.42 | $32,432.90 |
Year by year
| Year | Principal | Interest | Balance at year end |
|---|---|---|---|
| 1 | $2,567 | $2,206 | $32,433 |
| 2 | $2,740 | $2,034 | $29,693 |
| 3 | $2,924 | $1,850 | $26,770 |
| 4 | $3,120 | $1,653 | $23,650 |
| 5 | $3,330 | $1,444 | $20,320 |
| 6 | $3,553 | $1,220 | $16,767 |
| 7 | $3,792 | $981 | $12,975 |
| 8 | $4,047 | $726 | $8,928 |
| 9 | $4,319 | $455 | $4,609 |
| 10 | $4,609 | $164 | $0 |
| Total | $35,000 | $12,733 | $0 |
Full schedule, all 120 payments
| Month | Principal | Interest | Balance |
|---|---|---|---|
| 1 | 207.61 | 190.17 | 34,792.39 |
| 2 | 208.74 | 189.04 | 34,583.66 |
| 3 | 209.87 | 187.90 | 34,373.79 |
| 4 | 211.01 | 186.76 | 34,162.78 |
| 5 | 212.16 | 185.62 | 33,950.62 |
| 6 | 213.31 | 184.47 | 33,737.31 |
| 7 | 214.47 | 183.31 | 33,522.84 |
| 8 | 215.63 | 182.14 | 33,307.21 |
| 9 | 216.81 | 180.97 | 33,090.41 |
| 10 | 217.98 | 179.79 | 32,872.42 |
| 11 | 219.17 | 178.61 | 32,653.26 |
| 12 | 220.36 | 177.42 | 32,432.90 |
| 13 | 221.56 | 176.22 | 32,211.34 |
| 14 | 222.76 | 175.01 | 31,988.58 |
| 15 | 223.97 | 173.80 | 31,764.61 |
| 16 | 225.19 | 172.59 | 31,539.43 |
| 17 | 226.41 | 171.36 | 31,313.02 |
| 18 | 227.64 | 170.13 | 31,085.38 |
| 19 | 228.88 | 168.90 | 30,856.50 |
| 20 | 230.12 | 167.65 | 30,626.38 |
| 21 | 231.37 | 166.40 | 30,395.01 |
| 22 | 232.63 | 165.15 | 30,162.38 |
| 23 | 233.89 | 163.88 | 29,928.49 |
| 24 | 235.16 | 162.61 | 29,693.33 |
| 25 | 236.44 | 161.33 | 29,456.88 |
| 26 | 237.73 | 160.05 | 29,219.16 |
| 27 | 239.02 | 158.76 | 28,980.14 |
| 28 | 240.32 | 157.46 | 28,739.83 |
| 29 | 241.62 | 156.15 | 28,498.21 |
| 30 | 242.93 | 154.84 | 28,255.27 |
| 31 | 244.25 | 153.52 | 28,011.02 |
| 32 | 245.58 | 152.19 | 27,765.44 |
| 33 | 246.92 | 150.86 | 27,518.52 |
| 34 | 248.26 | 149.52 | 27,270.27 |
| 35 | 249.61 | 148.17 | 27,020.66 |
| 36 | 250.96 | 146.81 | 26,769.70 |
| 37 | 252.33 | 145.45 | 26,517.37 |
| 38 | 253.70 | 144.08 | 26,263.68 |
| 39 | 255.07 | 142.70 | 26,008.60 |
| 40 | 256.46 | 141.31 | 25,752.14 |
| 41 | 257.85 | 139.92 | 25,494.29 |
| 42 | 259.26 | 138.52 | 25,235.03 |
| 43 | 260.66 | 137.11 | 24,974.37 |
| 44 | 262.08 | 135.69 | 24,712.29 |
| 45 | 263.50 | 134.27 | 24,448.78 |
| 46 | 264.94 | 132.84 | 24,183.85 |
| 47 | 266.38 | 131.40 | 23,917.47 |
| 48 | 267.82 | 129.95 | 23,649.65 |
| 49 | 269.28 | 128.50 | 23,380.37 |
| 50 | 270.74 | 127.03 | 23,109.63 |
| 51 | 272.21 | 125.56 | 22,837.42 |
| 52 | 273.69 | 124.08 | 22,563.73 |
| 53 | 275.18 | 122.60 | 22,288.55 |
| 54 | 276.67 | 121.10 | 22,011.88 |
| 55 | 278.18 | 119.60 | 21,733.70 |
| 56 | 279.69 | 118.09 | 21,454.01 |
| 57 | 281.21 | 116.57 | 21,172.81 |
| 58 | 282.74 | 115.04 | 20,890.07 |
| 59 | 284.27 | 113.50 | 20,605.80 |
| 60 | 285.82 | 111.96 | 20,319.98 |
| 61 | 287.37 | 110.41 | 20,032.61 |
| 62 | 288.93 | 108.84 | 19,743.68 |
| 63 | 290.50 | 107.27 | 19,453.18 |
| 64 | 292.08 | 105.70 | 19,161.10 |
| 65 | 293.67 | 104.11 | 18,867.44 |
| 66 | 295.26 | 102.51 | 18,572.18 |
| 67 | 296.87 | 100.91 | 18,275.31 |
| 68 | 298.48 | 99.30 | 17,976.83 |
| 69 | 300.10 | 97.67 | 17,676.73 |
| 70 | 301.73 | 96.04 | 17,375.00 |
| 71 | 303.37 | 94.40 | 17,071.63 |
| 72 | 305.02 | 92.76 | 16,766.62 |
| 73 | 306.68 | 91.10 | 16,459.94 |
| 74 | 308.34 | 89.43 | 16,151.60 |
| 75 | 310.02 | 87.76 | 15,841.58 |
| 76 | 311.70 | 86.07 | 15,529.88 |
| 77 | 313.40 | 84.38 | 15,216.48 |
| 78 | 315.10 | 82.68 | 14,901.39 |
| 79 | 316.81 | 80.96 | 14,584.58 |
| 80 | 318.53 | 79.24 | 14,266.04 |
| 81 | 320.26 | 77.51 | 13,945.78 |
| 82 | 322.00 | 75.77 | 13,623.78 |
| 83 | 323.75 | 74.02 | 13,300.03 |
| 84 | 325.51 | 72.26 | 12,974.52 |
| 85 | 327.28 | 70.49 | 12,647.24 |
| 86 | 329.06 | 68.72 | 12,318.18 |
| 87 | 330.85 | 66.93 | 11,987.34 |
| 88 | 332.64 | 65.13 | 11,654.69 |
| 89 | 334.45 | 63.32 | 11,320.24 |
| 90 | 336.27 | 61.51 | 10,983.98 |
| 91 | 338.09 | 59.68 | 10,645.88 |
| 92 | 339.93 | 57.84 | 10,305.95 |
| 93 | 341.78 | 56.00 | 9,964.17 |
| 94 | 343.64 | 54.14 | 9,620.54 |
| 95 | 345.50 | 52.27 | 9,275.03 |
| 96 | 347.38 | 50.39 | 8,927.65 |
| 97 | 349.27 | 48.51 | 8,578.39 |
| 98 | 351.16 | 46.61 | 8,227.22 |
| 99 | 353.07 | 44.70 | 7,874.15 |
| 100 | 354.99 | 42.78 | 7,519.16 |
| 101 | 356.92 | 40.85 | 7,162.24 |
| 102 | 358.86 | 38.91 | 6,803.38 |
| 103 | 360.81 | 36.97 | 6,442.57 |
| 104 | 362.77 | 35.00 | 6,079.80 |
| 105 | 364.74 | 33.03 | 5,715.06 |
| 106 | 366.72 | 31.05 | 5,348.34 |
| 107 | 368.71 | 29.06 | 4,979.62 |
| 108 | 370.72 | 27.06 | 4,608.90 |
| 109 | 372.73 | 25.04 | 4,236.17 |
| 110 | 374.76 | 23.02 | 3,861.41 |
| 111 | 376.79 | 20.98 | 3,484.62 |
| 112 | 378.84 | 18.93 | 3,105.78 |
| 113 | 380.90 | 16.87 | 2,724.88 |
| 114 | 382.97 | 14.81 | 2,341.91 |
| 115 | 385.05 | 12.72 | 1,956.86 |
| 116 | 387.14 | 10.63 | 1,569.72 |
| 117 | 389.25 | 8.53 | 1,180.47 |
| 118 | 391.36 | 6.41 | 789.11 |
| 119 | 393.49 | 4.29 | 395.62 |
| 120 | 395.62 | 2.15 | 0.00 |
Sources
- Federal Direct Loan rates, 2026-27. U.S. Department of Education, Federal Student Aid, loans first disbursed from July 1, 2026; retrieved September 26, 2026.
Numbers on this page last changed September 26, 2026. How they are calculated: methodology.