Student Loan Payoff Calculator
Calculate student loan payoff timeline, interest paid, and impact of extra payments.
Calculation Inputs
Calculation Results
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Enter inputs on the left and click Calculate to view results.
Formula & Methodology
Simulate monthly amortization with and without extra payment
Extra payments go directly to principal, dramatically reducing interest and payoff time.
Frequently Asked Questions
Should I pay off student loans early or invest?
If loan rate > 6-7%, prioritize payoff. If rate is 4-5%, often better to invest in index funds targeting 7-10% returns.