Find out exactly how long it will take to pay off your student loans and how much interest you'll pay in total. By adjusting your monthly payment amount, you can see the dramatic impact that even small extra payments have on your payoff timeline and total cost.
Enter Your Measurements
Results
Months to Pay Off
119
months
Total Amount Paid
47,565.36
$
Total Interest Paid
12,565.36
$
Formula
How to Use This Calculator
How to Use
- 1
Enter your current student loan balance.
- 2
Enter the annual interest rate on your loan.
- 3
Enter your planned monthly payment amount.
- 4
See how many months until payoff and your total interest cost.
Frequently Asked Questions
Frequently Asked Questions
How much does an extra $100/month save?
What if my payment doesn't cover the interest?
Should I pay off student loans or invest?
In-Depth Guides
How to Pay Off Student Loans Faster: 7 Strategies
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Student Loan Refinancing: When to Do It and When to Wait
Learn when to refinance student loans, how much you can save, what credit score you need, and the critical risk of refinancing federal loans into private loans.
How to Use Student Loans Wisely: Borrowing, Repaying, and Avoiding Regret
A practical guide to borrowing student loans responsibly, understanding loan types, and choosing repayment strategies that minimize total cost.
College Major ROI: Which Degrees Pay Off and Which Don't
Return on investment analysis for college majors — median salaries by field, how to factor in cost of attendance, and how to evaluate your major choice financially.
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About This Calculator
This calculator uses the formula: Monthly Interest = Balance × (Annual Rate / 12) Months to Payoff = Solve iteratively until balance reaches $0. All calculations follow industry-standard methods. Results are estimates — always verify with a licensed professional for structural or code-compliant work.
Built and maintained by the CalcSmart team. Last updated March 2026.
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