Debt Snowball vs Avalanche Calculator
| Method | Order | Wins on | First win in |
|---|---|---|---|
| Snowball | smallest balance first | visible progress, fast closed accounts | weeks |
| Avalanche | highest rate first | total interest, finish date | months |
The two payoff orders differ on one question: avalanche pays the highest interest rate first and is mathematically cheapest, while snowball pays the smallest balance first and delivers a paid-off account in weeks - and the method that wins on paper is only better if it is the method you keep paying after month three.
Bottom line: on the same debts, avalanche saves the interest gap - often hundreds, occasionally thousands - while snowball closes accounts faster, and the closed account is the psychological fuel that keeps the whole plan alive. The calculators disagree on dollars; the behavior research says the finish line matters.
The honest part: the best method is the one matched to the borrower - the spreadsheet person runs avalanche and never looks back, and the person who needs visible progress runs snowball and finishes anyway. A hybrid - one quick snowball win, then avalanche - is what a lot of successful payoffs actually look like.
How to use
- Enter each debt's balance, rate and minimum payment - the calculator orders them both ways and prices the difference in interest and in finish date.
- Compare the two totals: the avalanche number is the floor, and the snowball number is the price of visible progress - decide which cost your habits can carry.
- Commit to one order, automate the payments, and every closed account rolls its whole payment onto the next debt in line.
Frequently asked questions
Which is better, snowball or avalanche?
Avalanche is better math - it minimizes total interest and finishes sooner in most cases - and snowball is better psychology - it closes accounts fast and keeps motivation alive. The difference in dollars is real but usually hundreds, not thousands, unless the rates are far apart; the payoff that actually happens beats the payoff that was optimal.
How much interest does avalanche save over snowball?
It depends on the spread: two debts at 6 and 22 percent, the avalanche might save a few hundred dollars over a two-year payoff, while a stack of cards all near 20 percent makes the two orders nearly identical. The calculator prices your actual spread - and when the answer is under 200 dollars, pick the order that feels better and stop optimizing.
Can I switch from snowball to avalanche midway?
Yes - after the first account closes, the discipline is proven and switching the order to avalanche keeps the payment rolling while the interest drops. Plenty of successful payoffs start snowball for the win, run avalanche for the middle, and finish snowball again for the last account - the order is a strategy, not a vow.
What about the debt consolidation loan in between?
A consolidation loan is the third option: one fixed payment at a lower rate, but the trap is the cleared cards getting spent again - which turns one debt into two. The loan pays off if the cards close and the spending stops; the snowball and avalanche both run on the same condition, and none of the three methods survives new charges.