Iterative Debt Avalanche Payoff Calculator
The avalanche method pays off your highest-interest debt first to minimize total interest. This calculator simulates monthly payments across three debts and projects your full payoff timeline.
Months to Debt Freedom
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Total Starting Debt—
Total Interest Paid—
Months to Payoff—
About this calculator
Simulate month-by-month payoff of multiple debts using the avalanche method (highest interest rate first) to see total interest paid and payoff timeline.
Frequently Asked Questions
What if my monthly payment is too low to cover interest?
If your payment doesn't exceed the combined interest accrual, the calculator will hit its 600-month cap, meaning your debt will never be paid off at that rate — increase your payment.
Why does avalanche save more than snowball?
Avalanche targets the highest interest rate debt first, minimizing total interest paid over time, though snowball can offer psychological wins with smaller balances first.