Student Loan Calculator
Calculate your student loan calculator quickly and accurately.
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Your Result
Calculation Breakdown
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Estimates only — not financial advice
Estimates only — not financial advice
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Why use this calculator?
Our mathematical models provide instant, reliable estimates to help you make informed financial decisions. Adjust the interactive inputs above to instantly see how different variables impact your final numbers.
Guide: Student Loan Calculator
Comprehensive guide and breakdown for the Student Loan Calculator is currently being drafted by our editorial team.
Frequently Asked Questions
Q: How is student loan interest calculated?
Most federal loans use simple daily interest: your rate divided by 365, applied to your principal balance each day.
Q: Does making extra payments actually help?
Yes — extra payments go toward principal (if applied correctly), which reduces both your future interest and payoff timeline.
Q: What's the difference between subsidized and unsubsidized loans?
Subsidized federal loans don't accrue interest while you're in school; unsubsidized loans do.
Q: Should I pay off student loans or save for retirement first?
It depends on your loan's interest rate versus expected investment returns — many balance both rather than choosing one exclusively.
Q: What happens to unpaid interest during deferment?
It typically capitalizes (gets added to your principal) when deferment ends, increasing your total balance.
Q: Can I lower my interest rate?
Refinancing with a private lender can lower your rate if you qualify, though it typically forfeits federal protections like income-driven repayment.
Q: How does loan term length affect total cost?
A longer term lowers your monthly payment but increases total interest paid over the life of the loan.
Q: What counts as an "extra payment" for student loans?
Any amount paid above your required monthly payment, ideally directed explicitly to principal with your servicer.
Q: Do private and federal loans calculate interest the same way?
Generally yes (simple daily interest), but terms, rates, and borrower protections differ significantly.
Q: Is this calculator accurate for income-driven repayment plans?
No — this tool assumes standard fixed payments; income-driven plans require different, income-based calculations.