Debt Snowball vs Avalanche Calculator
Compare snowball and avalanche methods to find the fastest path to becoming debt-free. See how extra payments save time and interest.
Your Debts
Additional amount you can pay each month
Time to Debt Freedom
0 years
Total Interest
$0
Total Paid
$0
Interest Saved
$0
Time Saved
0 months
Payment Summary
Debt Payoff Order
Payoff methodology, assumptions, and example
Each month, the calculator estimates interest as current balance × APR ÷ 12, applies each minimum payment, and directs the selected extra payment to the priority debt. Avalanche orders debts by highest APR; snowball orders them by smallest balance. When one debt is cleared, its payment is rolled into the next priority debt.
Worked example: with a $5,000 card at 18.9% APR and a $12,000 loan at 5.5% APR, avalanche targets the card first; snowball also targets it first because it has the smaller balance. Add another smaller low-rate debt and the methods may choose a different order.
Results assume fixed APRs, no new charges, payments made monthly, and lender payments applied as modeled. They exclude fees, promotional-rate expirations, daily compounding, variable rates, and lender-specific allocation rules. Confirm actual payoff quotes with each lender.
Reference: Consumer Financial Protection Bureau — snowball and highest-interest-rate methods.
Last reviewed: July 25, 2026. Educational estimate only, not financial or credit counseling.
How to Use
- Add each debt with name, balance, rate, and minimum payment
- Set your extra monthly payment amount
- Choose Snowball (smallest first) or Avalanche (highest rate first)
- Click Calculate to see your payoff timeline
- Compare total interest and months saved vs minimum payments
Snowball vs Avalanche
Avalanche targets highest interest first (mathematically optimal). Snowball targets smallest balance first (psychological wins). Snowball can provide earlier account closures, while avalanche generally minimizes modeled interest when rates and payments stay constant.
Payoff Strategies
Expert Tips
Build $1K buffer first so emergencies do not derail your plan
Call creditors to negotiate lower rates
Use windfalls like tax refunds toward debt
Celebrate milestones to stay motivated
Last reviewed: May 2026
Frequently Asked Questions
The debt snowball method involves paying off your debts in order of smallest balance to largest balance, regardless of the interest rate. Once the smallest debt is paid, you roll that payment into the next smallest.
The debt avalanche method focuses on paying off debts in order of highest interest rate to lowest interest rate. This strategy is mathematically optimal and saves the most money on interest.
Choose avalanche if you want to minimize interest payments and become debt-free with the lowest total cash outlay. Choose snowball if you need early psychological wins (getting rid of accounts completely) to maintain motivation.
Every dollar added as an extra payment goes directly toward reducing your principal debt balance. This shortens your payoff timeline and exponentially reduces the compound interest accrued over time.
Yes. You can call your credit card issuers to request a lower APR, especially if you have a history of on-time payments. Balance transfer cards (with 0% introductory APR) or debt consolidation loans are other options to lower rates.