Student Loan Calculator
Monthly payment and total interest for federal or private student loans. Add extra principal to see how much sooner you'd be debt-free.
Results
Monthly payment
$0.00
Total interest
$0
Total paid
$0
Payoff in
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Standard repayment vs alternatives
This calculator uses the standard 10-year repayment plan — fixed monthly payment over a fixed term. Federal loans also offer income-driven plans (IDR), graduated payments, and extended terms that change the monthly payment but typically increase total interest.
Where extra payments help
Federal loans are simple-interest. Every extra dollar of principal saves you future interest on that dollar. The earlier the extra payment, the more it saves. A $100/mo extra on a $35k loan @ 5.5% over 10 years saves ~$2,300 and shaves ~2 years off the term.