Free Student Loan Payoff Calculator — Avalanche vs Snowball
Add up to six loans, compare avalanche, snowball, and minimum-only repayment, model extra payments, and test how a lower refinance rate changes the payoff timeline.
Enter your loans
Include only active balances. The calculator keeps the monthly payment budget constant for avalanche and snowball so freed minimum payments roll into the next loan automatically.
Compare strategies
| Strategy | Months to payoff | Interest paid | Payoff date |
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Refinancing savings
Enter a hypothetical new rate to estimate how much interest the currently selected strategy could save if every active loan moved to that rate.
Average monthly savings: $0
Total interest savings: $0
Total interest savings: $0
Selected strategy results
Payoff date
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Total interest paid
$0
Savings vs minimum
$0
Avalanche usually minimizes interest, while snowball often produces faster psychological wins. Use the table below the inputs to see both clearly.
Need the deeper payoff plan?
Use the free calculator for fast comparisons, then grab the full accelerator kit for refinance break-even worksheets, PSLF tracking, employer benefit checklists, and a five-year sprint planner.