Debt Snowball vs Debt Avalanche — What's the Difference?
The debt avalanche pays off your highest-interest debt first to minimize total interest; the debt snowball pays off your smallest balance first to build motivation with quick wins.Both put every spare dollar toward one target debt while paying minimums on the rest, then "roll" each freed-up payment onto the next debt — that rolling snowball of payments is what accelerates payoff dramatically.
How to Use This Calculator
Enter each debt's balance, APR, and minimum payment (up to three debts), plus the extra amount you can pay each month. The calculator simulates both strategies month by month and shows the total interest, payoff time, and how much the avalanche saves versus the snowball.
Which Method Should You Choose?
Mathematically, avalanche always wins — it minimizes interest and usually finishes at least as fast. But the difference is often small (a few hundred dollars over several years), and studies show many people stick with the snowballbecause eliminating a whole debt early feels like progress and prevents burnout. If your highest-rate debt is also a large balance, the choice matters most; if not, pick the one you'll actually follow through on.
Accelerate Either Method
The single biggest lever is the extra payment — even $100 more per month can cut years off high-interest debt. Consider a balance transfer to pause interest, and once the debt is gone, redirect those payments into investing. See our Credit Card Payoff Calculator and Student Loan Payoff Calculator for debt-specific plans, then put the freed cash to work with our Compound Interest Calculator.