Free debt payoff calculator — compare snowball vs avalanche, see how fast you can become debt-free
This free debt payoff calculator (also a credit card debt payoff calculator) helps you figure out exactly how long it will take to become debt-free, and which repayment strategy will save you the most money. Whether you're dealing with credit card debt, student loans, car loans, or personal loans, this tool shows you the fastest path to financial freedom.
Millions of Americans are struggling with debt. The average household carries over $5,000 in credit card debt alone, with interest rates often exceeding 20%. At those rates, making only minimum payments can take decades to pay off and cost tens of thousands in interest.
There are two main strategies for paying off debt:
This calculator lets you compare both methods side by side, so you can see exactly how much time and money each approach saves.
1. Enter all your debts: credit cards, loans, medical bills, etc.
2. For each debt, enter the current balance, interest rate, and minimum monthly payment.
3. Enter how much extra you can put toward debt each month.
4. The calculator simulates both the snowball and avalanche methods month by month.
5. It shows you how many months it takes to become debt-free and how much total interest you'll pay.
The debt snowball method, popularized by Dave Ramsey, involves paying off your smallest debt balance first while making minimum payments on all other debts. Once the smallest debt is paid off, you roll that payment into the next smallest debt, creating a "snowball" effect. While it may not save the most in interest, the psychological wins keep you motivated.
The debt avalanche method involves paying off your highest interest rate debt first while making minimum payments on all others. This method saves you the most money in interest over the long run. Mathematically, it's always optimal, but it can be harder to stay motivated because the first debt payoff takes longer.
Mathematically, the avalanche method is always better — it saves you the most money in interest. However, behavioral research shows that people who use the snowball method are more likely to stick with their debt payoff plan because they see quick wins. Use this calculator to see the difference, then pick the method you'll actually stick with.
The fastest way to pay off credit card debt is to make a large extra payment each month and target your highest APR card first (avalanche method). If you have good credit, consider a 0% APR balance transfer card to pause interest while you pay down the balance.
It depends on your interest rate and how much you pay each month. At 20% APR and making $500 monthly payments, it takes about 2 years and costs around $2,000 in interest. Use this calculator with your own numbers to see your exact timeline.