Student Loan Repayment Calculator

Calculate your student loan payments under different repayment plans. Compare Standard, Extended, and accelerated payoff strategies to save on interest.

MT
Written by Michael Torres, CFA
Senior Financial Analyst
JW
Fact-checked by Dr. James Wilson, PhD
Options Strategy Researcher
Financial PlanningFact-Checked

Input Values

$

Your current total student loan balance.

%

Weighted average interest rate across all loans.

Choose a repayment plan.

$

Additional amount above minimum each month.

Results

Monthly Payment
$0.00
Total Amount Paid$0.00
Total Interest Paid
$0.00
Payoff Date0
Payoff Timeline (months)0
Interest Saved vs. Standard$0.00
Results update automatically as you change input values.

Student Loan Repayment Plans Compared

The average student loan borrower graduates with approximately $37,000 in debt. Choosing the right repayment plan can save thousands in interest and years of payments. The Standard 10-year plan has the lowest total cost, but income-driven plans offer lower monthly payments if needed. The SAVE plan (replacing REPAYE) is the newest income-driven option for federal loans.

Repayment Plan Comparison ($35,000 at 5.5%)
PlanMonthly PaymentTotal PaidTotal InterestTimeline
Standard (10 yr)$380$45,553$10,553120 months
Extended (25 yr)$215$64,389$29,389300 months
Accelerated (5 yr)$670$40,184$5,18460 months
Standard + $100 extra$480$42,571$7,57189 months

Impact of Extra Payments

Extra payments on student loans go directly toward reducing the principal (by law, you can direct extra payments to principal). Even $100 extra per month on a $35,000 loan at 5.5% saves $2,982 in interest and pays off the loan 31 months early. The key is consistency and ensuring extra payments are applied to principal, not future payments.

Student Loan Payoff Example
Given
Balance
$35,000
Rate
5.5%
Plan
Standard 10-year
Extra Payment
$150/month
Calculation Steps
  1. 1Standard payment: $380/month
  2. 2With extra: $380 + $150 = $530/month
  3. 3Standard payoff: 120 months (May 2036)
  4. 4Accelerated payoff: 80 months (December 2032)
  5. 5Standard total interest: $10,553
  6. 6Accelerated total interest: $6,774
  7. 7Interest saved: $3,779
  8. 8Time saved: 40 months (3 years 4 months)
Result
By paying an extra $150/month on a $35,000 student loan at 5.5%, you save $3,779 in interest and pay off the loan 40 months (over 3 years) early.

Federal Student Loan Interest Rates (2026)

2025-2026 Federal Student Loan Interest Rates
Loan TypeInterest RateBorrower
Direct Subsidized5.50%Undergraduate
Direct Unsubsidized5.50%Undergraduate
Direct Unsubsidized7.05%Graduate
Direct PLUS8.05%Graduate/Parent
!
Avoid the Minimum Payment Trap

Extended and income-driven plans can cost $15,000-$30,000 more in interest compared to the Standard plan. While lower monthly payments help with cash flow, they dramatically increase the total cost. If you can afford more, pay more. Every extra dollar saves interest.

Student Loan Payoff Strategies

Strategies to Pay Off Student Loans Faster

1
Avalanche Method
Pay minimums on all loans and put extra money toward the highest interest rate loan first. This minimizes total interest paid.
2
Snowball Method
Pay minimums on all loans and put extra money toward the smallest balance first. Quick wins provide motivation, though you pay slightly more interest.
3
Refinancing
If your credit score has improved since graduation, refinancing can lower your rate by 1-3%. A 2% rate reduction on $35,000 saves $4,000+ in interest. Note: refinancing federal loans into private loans means losing federal protections.
4
Autopay Discount
Most federal and private loan servicers offer a 0.25% interest rate reduction for enrolling in autopay. Free money savings.

Frequently Asked Questions

Under the Standard 10-year plan at 5.5%, the monthly payment is $380. Under the Extended 25-year plan, it is $215/month. Income-driven plans vary based on your income.

Sources & References

  • U.S. Securities and Exchange Commission (SEC) - Investor Education
  • Options Clearing Corporation (OCC) - Options Education
  • Chicago Board Options Exchange (CBOE) - Options Strategies
  • Hull, J.C. "Options, Futures, and Other Derivatives" (11th Edition, 2021)

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