Debt snowball vs. avalanche calculator
List every balance you're carrying and see which strategy — smallest balance first or highest rate first — gets you debt-free sooner and cheaper.
We pick the payoff order once — smallest balance first for snowball, highest APR first for avalanche — then send every spare dollar of budget to that debt each month until it clears, rolling its payment into the next one.
- Every debt gets at least its minimum payment each month.
- Leftover budget goes entirely to the current highest-priority debt.
- When a debt clears, its payment rolls into the next one in line.
Example: Using the example numbers below, this works out to a months to debt-free: 2 yrs 2 mo, with a total interest paid of $1,154.
Your numbers
Prefilled with a typical example — edit to match your statement.
Debt 1
Debt 2
Debt 3
Everything you can put toward these debts each month, including minimums
Months to debt-free
2 yrs 2 mo
$1,154
$12,954
Store card → Visa → Car loan
Current plan
Avalanche strategy
You save on months to debt-free
0 months
Payoff schedule — see the full breakdown
First and last 3 periods shown below; expand for all 26.
| Month | Total payment | Interest | Total remaining |
|---|---|---|---|
| 1 | $500 | $104 | $11,404 |
| 2 | $500 | $98 | $11,003 |
| 3 | $500 | $92 | $10,595 |
| 24 | $500 | $9 | $972 |
| 25 | $500 | $6 | $478 |
| 26 | $481 | $3 | $0 |
Show all 26 periods
| Month | Total payment | Interest | Total remaining |
|---|---|---|---|
| 1 | $500 | $104 | $11,404 |
| 2 | $500 | $98 | $11,003 |
| 3 | $500 | $92 | $10,595 |
| 4 | $500 | $86 | $10,180 |
| 5 | $500 | $79 | $9,760 |
| 6 | $500 | $73 | $9,332 |
| 7 | $473 | $66 | $8,925 |
| 8 | $500 | $61 | $8,486 |
| 9 | $500 | $55 | $8,040 |
| 10 | $500 | $49 | $7,589 |
| 11 | $500 | $46 | $7,135 |
| 12 | $500 | $43 | $6,677 |
| 13 | $500 | $40 | $6,218 |
| 14 | $500 | $37 | $5,755 |
| 15 | $500 | $35 | $5,289 |
| 16 | $500 | $32 | $4,821 |
| 17 | $500 | $29 | $4,350 |
| 18 | $500 | $26 | $3,876 |
| 19 | $500 | $23 | $3,399 |
| 20 | $500 | $20 | $2,920 |
| 21 | $500 | $18 | $2,437 |
| 22 | $500 | $15 | $1,952 |
| 23 | $500 | $12 | $1,464 |
| 24 | $500 | $9 | $972 |
| 25 | $500 | $6 | $478 |
| 26 | $481 | $3 | $0 |
See if there's a better option
Paying $1,154 in interest across 2 yrs 2 mo? A consolidation loan could combine these into one lower-rate payment.
Checking won't affect your credit score.
Key takeaway: Both strategies pay off every debt using the exact same total budget — the only difference is the order, which changes how much interest accrues along the way and how quickly you see a balance hit zero.
Which strategy should I actually pick?
If minimizing total interest is your only goal, avalanche wins — it always pays off your highest-rate debt first, cutting off the most expensive interest sooner. But debt payoff is also about follow-through: snowball's quick early wins (clearing whole balances fast) can matter more than the math if they're what keeps you going. If you're only juggling one high-interest balance rather than several debts, the single-balance credit card payoff calculator is a simpler tool for that.
How does the rollover work?
Every debt gets its minimum payment each month. Whatever budget is left over goes entirely to your highest-priority debt — smallest balance for snowball, highest APR for avalanche. Once that debt clears, its former payment (minimum plus whatever extra it was getting) rolls straight into the next debt in line, so your total monthly payment never changes.
How we calculate this
We pick the payoff order once, up front — smallest current balance first for snowball, highest APR first for avalanche — and lock it in. Each month, every debt accrues interest and gets at least its minimum payment; any leftover budget goes to the current highest-priority debt. When a debt reaches $0, its payment amount is redirected to the next debt in the fixed order, and we repeat until every debt is paid off.
Frequently asked questions
What's the difference between snowball and avalanche?
Snowball pays off your smallest balance first, regardless of rate — it builds momentum with quick wins. Avalanche pays off your highest-APR debt first, which minimizes the total interest you pay. Avalanche is usually cheaper; snowball is usually easier to stick with.
What happens to a debt's payment once it's paid off?
It rolls over. Once a debt clears, the money you were putting toward it — its minimum plus any extra — gets redirected to your next-priority debt, so your total monthly payment stays the same the whole time.
What if my budget doesn't cover all my minimum payments?
Then neither strategy can run — you'll need to raise your monthly budget above the combined minimum payments across all your debts, or address the highest-cost debt some other way first.
Sources
- Consumer Financial Protection Bureau, Strategies for paying off multiple debts
Last updated 2026-07-01
Written by Centave Editorial Team — Centave's in-house calculator and content team
Reviewed by Centave Accuracy Review on 2026-06-15 — Centave's fact-checking and methodology review process
Not financial advice. This calculator is for education — confirm details with your card issuer before deciding.