Student Loan Calculator
Experiment with loan repayment scenarios to see how monthly payments, interest accrual, grace periods, and amortization actually work.
For training and educational use only
This calculator is provided for testing, training, and educational use only. All payment amounts, balances, schedules, and projections are estimates based on sample assumptions entered into the tool. Actual loan terms, interest calculations, repayment options, fees, and monthly payment amounts may vary depending on your specific student loan program and servicer. Only your lender or loan servicer can provide your official repayment schedule, exact balance details, and required payment amounts.
Loan Inputs
Adjust any value, then recalculate.
Any amount entered here is added to your scheduled monthly payment and applied directly to principal, which reduces future interest and pays off the loan sooner.
Summary
Based on the standard amortized loan formula. Interest accrues monthly during the grace period and capitalizes at repayment start.
Estimated monthly payment
$635.81
With extra payment
$635.81
Scheduled payment plus any optional extra amount. The extra portion goes straight to principal, lowering total interest and shortening the payoff timeline.
Total repayment amount
$76,297.53
Total interest paid
$21,537.30
Interest accrued before repayment
$14,760.23
Balance at repayment start
$54,760.23
Repayment start date
07/01/2029
Maturity date
06/01/2039
Number of monthly payments
120
Salary Needed to Live Calculator
Estimate the gross annual salary you may need to cover basic monthly living expenses, including your estimated student loan payment from the calculator above.
Auto-pulled from the Estimated Monthly Payment in the main loan calculator.
Total estimated monthly expenses
$2,835.81
Total estimated annual expenses
$34,029.75
Estimated gross annual salary needed
$45,373.00
Assumes take-home pay is ~75% of gross income.
Estimated gross monthly income needed
$3,781.08
Estimated take-home monthly income needed
$2,835.81
How this estimate works
This is a simplified educational estimate. The salary number assumes that roughly 75% of gross income becomes take-home pay after taxes and deductions. Actual take-home pay can vary depending on federal taxes, state taxes, benefits, retirement contributions, insurance, location, filing status, and other payroll deductions.
Saving for retirement early can be an important long-term financial habit, even while repaying student loans. Even modest monthly contributions can grow significantly over time thanks to compounding.
Educational estimate only
This salary estimate is for educational and training purposes only. Actual salary needs may vary based on location, taxes, benefits, lifestyle, family size, transportation, healthcare, debt obligations, and retirement goals.
How to read this calculator
Grace period: During the grace period, monthly payments are not required. This gives borrowers time to transition into repayment after leaving school.
Interest accrual: On most loans, interest still accrues during in-school and grace periods. This calculator capitalizes that accrued interest into the principal when repayment begins, which is why your starting repayment balance may be larger than the original loan amount.
Amortization: The amortization table shows how each scheduled payment is split between interest and principal. Each month, interest is calculated on the current balance, and the rest of the payment reduces principal.
Early vs. later payments: Early in the loan, most of each payment goes toward interest because the balance is high. As the balance shrinks, more of each payment reduces principal — which is why extra payments early on save the most interest.
Amortization Schedule
Each row represents one monthly payment from repayment start through maturity.
| # | Date | Beginning Balance | Payment | Interest | Principal | Ending Balance |
|---|---|---|---|---|---|---|
| 1 | 07/01/2029 | $54,760.23 | $635.81 | $319.43 | $316.38 | $54,443.86 |
| 2 | 08/01/2029 | $54,443.86 | $635.81 | $317.59 | $318.22 | $54,125.63 |
| 3 | 09/01/2029 | $54,125.63 | $635.81 | $315.73 | $320.08 | $53,805.55 |
| 4 | 10/01/2029 | $53,805.55 | $635.81 | $313.87 | $321.95 | $53,483.60 |
| 5 | 11/01/2029 | $53,483.60 | $635.81 | $311.99 | $323.83 | $53,159.78 |
| 6 | 12/01/2029 | $53,159.78 | $635.81 | $310.10 | $325.71 | $52,834.07 |
| 7 | 01/01/2030 | $52,834.07 | $635.81 | $308.20 | $327.61 | $52,506.45 |
| 8 | 02/01/2030 | $52,506.45 | $635.81 | $306.29 | $329.53 | $52,176.93 |
| 9 | 03/01/2030 | $52,176.93 | $635.81 | $304.37 | $331.45 | $51,845.48 |
| 10 | 04/01/2030 | $51,845.48 | $635.81 | $302.43 | $333.38 | $51,512.10 |
| 11 | 05/01/2030 | $51,512.10 | $635.81 | $300.49 | $335.33 | $51,176.77 |
| 12 | 06/01/2030 | $51,176.77 | $635.81 | $298.53 | $337.28 | $50,839.49 |
| 13 | 07/01/2030 | $50,839.49 | $635.81 | $296.56 | $339.25 | $50,500.24 |
| 14 | 08/01/2030 | $50,500.24 | $635.81 | $294.58 | $341.23 | $50,159.01 |
| 15 | 09/01/2030 | $50,159.01 | $635.81 | $292.59 | $343.22 | $49,815.80 |
| 16 | 10/01/2030 | $49,815.80 | $635.81 | $290.59 | $345.22 | $49,470.58 |
| 17 | 11/01/2030 | $49,470.58 | $635.81 | $288.58 | $347.23 | $49,123.34 |
| 18 | 12/01/2030 | $49,123.34 | $635.81 | $286.55 | $349.26 | $48,774.08 |
| 19 | 01/01/2031 | $48,774.08 | $635.81 | $284.52 | $351.30 | $48,422.78 |
| 20 | 02/01/2031 | $48,422.78 | $635.81 | $282.47 | $353.35 | $48,069.44 |
| 21 | 03/01/2031 | $48,069.44 | $635.81 | $280.41 | $355.41 | $47,714.03 |
| 22 | 04/01/2031 | $47,714.03 | $635.81 | $278.33 | $357.48 | $47,356.55 |
| 23 | 05/01/2031 | $47,356.55 | $635.81 | $276.25 | $359.57 | $46,996.98 |
| 24 | 06/01/2031 | $46,996.98 | $635.81 | $274.15 | $361.66 | $46,635.32 |
| 25 | 07/01/2031 | $46,635.32 | $635.81 | $272.04 | $363.77 | $46,271.55 |
| 26 | 08/01/2031 | $46,271.55 | $635.81 | $269.92 | $365.90 | $45,905.65 |
| 27 | 09/01/2031 | $45,905.65 | $635.81 | $267.78 | $368.03 | $45,537.62 |
| 28 | 10/01/2031 | $45,537.62 | $635.81 | $265.64 | $370.18 | $45,167.44 |
| 29 | 11/01/2031 | $45,167.44 | $635.81 | $263.48 | $372.34 | $44,795.11 |
| 30 | 12/01/2031 | $44,795.11 | $635.81 | $261.30 | $374.51 | $44,420.60 |
| 31 | 01/01/2032 | $44,420.60 | $635.81 | $259.12 | $376.69 | $44,043.91 |
| 32 | 02/01/2032 | $44,043.91 | $635.81 | $256.92 | $378.89 | $43,665.02 |
| 33 | 03/01/2032 | $43,665.02 | $635.81 | $254.71 | $381.10 | $43,283.92 |
| 34 | 04/01/2032 | $43,283.92 | $635.81 | $252.49 | $383.32 | $42,900.59 |
| 35 | 05/01/2032 | $42,900.59 | $635.81 | $250.25 | $385.56 | $42,515.03 |
| 36 | 06/01/2032 | $42,515.03 | $635.81 | $248.00 | $387.81 | $42,127.23 |
| 37 | 07/01/2032 | $42,127.23 | $635.81 | $245.74 | $390.07 | $41,737.16 |
| 38 | 08/01/2032 | $41,737.16 | $635.81 | $243.47 | $392.35 | $41,344.81 |
| 39 | 09/01/2032 | $41,344.81 | $635.81 | $241.18 | $394.63 | $40,950.17 |
| 40 | 10/01/2032 | $40,950.17 | $635.81 | $238.88 | $396.94 | $40,553.24 |
| 41 | 11/01/2032 | $40,553.24 | $635.81 | $236.56 | $399.25 | $40,153.99 |
| 42 | 12/01/2032 | $40,153.99 | $635.81 | $234.23 | $401.58 | $39,752.40 |
| 43 | 01/01/2033 | $39,752.40 | $635.81 | $231.89 | $403.92 | $39,348.48 |
| 44 | 02/01/2033 | $39,348.48 | $635.81 | $229.53 | $406.28 | $38,942.20 |
| 45 | 03/01/2033 | $38,942.20 | $635.81 | $227.16 | $408.65 | $38,533.55 |
| 46 | 04/01/2033 | $38,533.55 | $635.81 | $224.78 | $411.03 | $38,122.52 |
| 47 | 05/01/2033 | $38,122.52 | $635.81 | $222.38 | $413.43 | $37,709.09 |
| 48 | 06/01/2033 | $37,709.09 | $635.81 | $219.97 | $415.84 | $37,293.24 |
| 49 | 07/01/2033 | $37,293.24 | $635.81 | $217.54 | $418.27 | $36,874.97 |
| 50 | 08/01/2033 | $36,874.97 | $635.81 | $215.10 | $420.71 | $36,454.27 |
| 51 | 09/01/2033 | $36,454.27 | $635.81 | $212.65 | $423.16 | $36,031.10 |
| 52 | 10/01/2033 | $36,031.10 | $635.81 | $210.18 | $425.63 | $35,605.47 |
| 53 | 11/01/2033 | $35,605.47 | $635.81 | $207.70 | $428.11 | $35,177.36 |
| 54 | 12/01/2033 | $35,177.36 | $635.81 | $205.20 | $430.61 | $34,746.75 |
| 55 | 01/01/2034 | $34,746.75 | $635.81 | $202.69 | $433.12 | $34,313.62 |
| 56 | 02/01/2034 | $34,313.62 | $635.81 | $200.16 | $435.65 | $33,877.97 |
| 57 | 03/01/2034 | $33,877.97 | $635.81 | $197.62 | $438.19 | $33,439.78 |
| 58 | 04/01/2034 | $33,439.78 | $635.81 | $195.07 | $440.75 | $32,999.03 |
| 59 | 05/01/2034 | $32,999.03 | $635.81 | $192.49 | $443.32 | $32,555.72 |
| 60 | 06/01/2034 | $32,555.72 | $635.81 | $189.91 | $445.90 | $32,109.81 |
| 61 | 07/01/2034 | $32,109.81 | $635.81 | $187.31 | $448.51 | $31,661.31 |
| 62 | 08/01/2034 | $31,661.31 | $635.81 | $184.69 | $451.12 | $31,210.18 |
| 63 | 09/01/2034 | $31,210.18 | $635.81 | $182.06 | $453.75 | $30,756.43 |
| 64 | 10/01/2034 | $30,756.43 | $635.81 | $179.41 | $456.40 | $30,300.03 |
| 65 | 11/01/2034 | $30,300.03 | $635.81 | $176.75 | $459.06 | $29,840.97 |
| 66 | 12/01/2034 | $29,840.97 | $635.81 | $174.07 | $461.74 | $29,379.23 |
| 67 | 01/01/2035 | $29,379.23 | $635.81 | $171.38 | $464.43 | $28,914.79 |
| 68 | 02/01/2035 | $28,914.79 | $635.81 | $168.67 | $467.14 | $28,447.65 |
| 69 | 03/01/2035 | $28,447.65 | $635.81 | $165.94 | $469.87 | $27,977.78 |
| 70 | 04/01/2035 | $27,977.78 | $635.81 | $163.20 | $472.61 | $27,505.17 |
| 71 | 05/01/2035 | $27,505.17 | $635.81 | $160.45 | $475.37 | $27,029.81 |
| 72 | 06/01/2035 | $27,029.81 | $635.81 | $157.67 | $478.14 | $26,551.67 |
| 73 | 07/01/2035 | $26,551.67 | $635.81 | $154.88 | $480.93 | $26,070.74 |
| 74 | 08/01/2035 | $26,070.74 | $635.81 | $152.08 | $483.73 | $25,587.01 |
| 75 | 09/01/2035 | $25,587.01 | $635.81 | $149.26 | $486.56 | $25,100.45 |
| 76 | 10/01/2035 | $25,100.45 | $635.81 | $146.42 | $489.39 | $24,611.06 |
| 77 | 11/01/2035 | $24,611.06 | $635.81 | $143.56 | $492.25 | $24,118.81 |
| 78 | 12/01/2035 | $24,118.81 | $635.81 | $140.69 | $495.12 | $23,623.69 |
| 79 | 01/01/2036 | $23,623.69 | $635.81 | $137.80 | $498.01 | $23,125.68 |
| 80 | 02/01/2036 | $23,125.68 | $635.81 | $134.90 | $500.91 | $22,624.77 |
| 81 | 03/01/2036 | $22,624.77 | $635.81 | $131.98 | $503.83 | $22,120.93 |
| 82 | 04/01/2036 | $22,120.93 | $635.81 | $129.04 | $506.77 | $21,614.16 |
| 83 | 05/01/2036 | $21,614.16 | $635.81 | $126.08 | $509.73 | $21,104.43 |
| 84 | 06/01/2036 | $21,104.43 | $635.81 | $123.11 | $512.70 | $20,591.73 |
| 85 | 07/01/2036 | $20,591.73 | $635.81 | $120.12 | $515.69 | $20,076.03 |
| 86 | 08/01/2036 | $20,076.03 | $635.81 | $117.11 | $518.70 | $19,557.33 |
| 87 | 09/01/2036 | $19,557.33 | $635.81 | $114.08 | $521.73 | $19,035.60 |
| 88 | 10/01/2036 | $19,035.60 | $635.81 | $111.04 | $524.77 | $18,510.83 |
| 89 | 11/01/2036 | $18,510.83 | $635.81 | $107.98 | $527.83 | $17,983.00 |
| 90 | 12/01/2036 | $17,983.00 | $635.81 | $104.90 | $530.91 | $17,452.08 |
| 91 | 01/01/2037 | $17,452.08 | $635.81 | $101.80 | $534.01 | $16,918.08 |
| 92 | 02/01/2037 | $16,918.08 | $635.81 | $98.69 | $537.12 | $16,380.95 |
| 93 | 03/01/2037 | $16,380.95 | $635.81 | $95.56 | $540.26 | $15,840.69 |
| 94 | 04/01/2037 | $15,840.69 | $635.81 | $92.40 | $543.41 | $15,297.29 |
| 95 | 05/01/2037 | $15,297.29 | $635.81 | $89.23 | $546.58 | $14,750.71 |
| 96 | 06/01/2037 | $14,750.71 | $635.81 | $86.05 | $549.77 | $14,200.94 |
| 97 | 07/01/2037 | $14,200.94 | $635.81 | $82.84 | $552.97 | $13,647.97 |
| 98 | 08/01/2037 | $13,647.97 | $635.81 | $79.61 | $556.20 | $13,091.77 |
| 99 | 09/01/2037 | $13,091.77 | $635.81 | $76.37 | $559.44 | $12,532.32 |
| 100 | 10/01/2037 | $12,532.32 | $635.81 | $73.11 | $562.71 | $11,969.62 |
| 101 | 11/01/2037 | $11,969.62 | $635.81 | $69.82 | $565.99 | $11,403.63 |
| 102 | 12/01/2037 | $11,403.63 | $635.81 | $66.52 | $569.29 | $10,834.33 |
| 103 | 01/01/2038 | $10,834.33 | $635.81 | $63.20 | $572.61 | $10,261.72 |
| 104 | 02/01/2038 | $10,261.72 | $635.81 | $59.86 | $575.95 | $9,685.77 |
| 105 | 03/01/2038 | $9,685.77 | $635.81 | $56.50 | $579.31 | $9,106.46 |
| 106 | 04/01/2038 | $9,106.46 | $635.81 | $53.12 | $582.69 | $8,523.76 |
| 107 | 05/01/2038 | $8,523.76 | $635.81 | $49.72 | $586.09 | $7,937.67 |
| 108 | 06/01/2038 | $7,937.67 | $635.81 | $46.30 | $589.51 | $7,348.16 |
| 109 | 07/01/2038 | $7,348.16 | $635.81 | $42.86 | $592.95 | $6,755.22 |
| 110 | 08/01/2038 | $6,755.22 | $635.81 | $39.41 | $596.41 | $6,158.81 |
| 111 | 09/01/2038 | $6,158.81 | $635.81 | $35.93 | $599.89 | $5,558.92 |
| 112 | 10/01/2038 | $5,558.92 | $635.81 | $32.43 | $603.39 | $4,955.54 |
| 113 | 11/01/2038 | $4,955.54 | $635.81 | $28.91 | $606.91 | $4,348.63 |
| 114 | 12/01/2038 | $4,348.63 | $635.81 | $25.37 | $610.45 | $3,738.19 |
| 115 | 01/01/2039 | $3,738.19 | $635.81 | $21.81 | $614.01 | $3,124.18 |
| 116 | 02/01/2039 | $3,124.18 | $635.81 | $18.22 | $617.59 | $2,506.59 |
| 117 | 03/01/2039 | $2,506.59 | $635.81 | $14.62 | $621.19 | $1,885.40 |
| 118 | 04/01/2039 | $1,885.40 | $635.81 | $11.00 | $624.81 | $1,260.58 |
| 119 | 05/01/2039 | $1,260.58 | $635.81 | $7.35 | $628.46 | $632.13 |
| 120 | 06/01/2039 | $632.13 | $635.81 | $3.69 | $632.13 | $0.00 |
For training and educational use only
This calculator is provided for testing, training, and educational use only. All payment amounts, balances, schedules, and projections are estimates based on sample assumptions entered into the tool. Actual loan terms, interest calculations, repayment options, fees, and monthly payment amounts may vary depending on your specific student loan program and servicer. Only your lender or loan servicer can provide your official repayment schedule, exact balance details, and required payment amounts.