Debt Payoff Calculator: Snowball vs. Avalanche
List your debts, set how much you can put toward them each month, and compare the two most popular payoff methods side by side. You'll see your debt-free date, total interest and the order your debts get paid off.
Results are estimates. The calculator applies each APR monthly, assumes no new charges or fees, and keeps your total monthly payment fixed. See our terms of use.
How to use this debt payoff calculator
- List every debt you want to pay off: credit cards, personal loans, car loans, medical bills or student loans. Your statements show the balance, the APR and the minimum payment for each.
- Set your monthly budget: the total you can put toward all of these debts each month. It has to be at least the sum of your minimum payments. Anything above that is your "extra" payment.
- Compare the results. The calculator runs both methods month by month. When a debt is paid off, its payment rolls over to the next debt on the list, so your budget keeps working at full strength.
The example already loaded has four debts and a $1,000 monthly budget, $320 more than the minimums. With the avalanche method, those debts are gone in 27 months with about $3,378 of interest. The snowball method takes 28 months and costs about $3,725, roughly $347 more. But the snowball clears the second debt in month 12, six months before the avalanche does. That tradeoff between money and momentum is exactly what you're choosing between.
What is the debt snowball method?
The debt snowball, popularized by personal finance author Dave Ramsey, orders your debts from the smallest balance to the largest, regardless of interest rate:
- Pay the minimum on every debt.
- Put every extra dollar toward the smallest balance.
- When it's paid off, add its payment to the next-smallest debt, and repeat.
The payment you send to your target debt grows each time you knock one out, like a snowball rolling downhill. The big advantage is psychological: you see accounts disappear quickly, which makes it easier to stick with the plan.
What is the debt avalanche method?
The debt avalanche orders your debts from the highest interest rate to the lowest. You still pay every minimum and roll payments forward as debts are paid off. The only difference is the target. By attacking the most expensive debt first, the avalanche usually pays the least total interest and often gets you debt-free a little sooner.
Snowball vs. avalanche: which should you choose?
| Debt snowball | Debt avalanche | |
|---|---|---|
| Pays first | Smallest balance | Highest APR |
| Main advantage | Quick wins that keep you motivated | Lowest total interest |
| Main drawback | Can cost more interest | First payoff can take longer |
| Best for | People who need momentum | People who are motivated by the numbers |
Mathematically, the avalanche usually wins. But a plan only works if you stick with it, and consumer research has found that closing out individual accounts gives many people the motivation to keep going. If the two methods are close in cost for your debts, and they often are, the snowball's quick wins may be worth it. If the gap is large, for example because you have a big high-interest card balance, the avalanche can save serious money. The calculator above shows the exact difference for your debts.
You can also combine them. Start with one or two small debts for quick wins, then switch to the highest-rate debt.
Tips to get out of debt faster
- Find extra money for your budget. Every dollar above your minimums speeds up both methods. Cancel unused subscriptions, sell things you don't use, or put windfalls like tax refunds and bonuses toward debt.
- Build a small emergency fund first. Even $500 to $1,000 means an unexpected bill doesn't go straight back on a credit card.
- Stop taking on new debt while you pay off the old.
- Lower your interest rates. A 0% balance transfer or a lower-rate consolidation loan can cut your interest costs significantly. Compare the numbers with our loan calculator.
- Automate your minimums so a missed payment never costs you a late fee or a penalty APR, then make the extra payment manually each month.
Frequently asked questions
Should I include my mortgage?
Most people leave the mortgage out. It's usually their lowest-rate debt and by far the largest, so it would come last under either method anyway. Focus on consumer debt first, then decide whether to pay the mortgage down early.
What if two debts have the same balance or rate?
The calculator breaks ties sensibly. In the snowball, the debt with the higher APR goes first. In the avalanche, the smaller balance goes first.
My minimum payments go down as I pay. Does that matter?
Not much. This calculator keeps your total monthly payment fixed, so when a minimum drops, the difference goes toward your target debt. The total you pay each month is what drives the result.
What happens if my budget doesn't cover the minimums?
The calculator will tell you. Missing minimum payments leads to late fees, penalty rates and credit damage, so cover them first. If you can't, contact your lenders or a nonprofit credit counseling agency about hardship programs or a debt management plan.
Does the order matter for my credit score?
Paying down credit card balances in either order lowers your credit utilization, which tends to help your score. Paying on time every month matters most.
Last reviewed: October 2026