Free Tool

Free Debt Avalanche Calculator

Pay your highest interest rate first and save the most money. Enter your debts to see your exact debt-free date with the avalanche method — and your total interest savings.

Your Debts

Payoff Strategy

Extra Monthly Payment

This extra amount is applied to your priority debt each month on top of all minimum payments.

Debt-Free Date

December 2033

Total Interest

$7,315

Total Amount Paid

$43,015

Months to Debt-Free

88

By paying an extra $100/mo, you save $3,759 in interest and become debt-free 25 months sooner.

Payoff Timeline

DebtBalanceInterest PaidPayoff Date
Credit Card$5,200$1,680February 2029
Car Loan$12,500$1,744May 2030
Student Loan$18,000$3,891December 2033

Ready to follow your plan?

Track every payment in Toffee — free to download. Get reminders, see your progress, and stay on top of your debt payoff journey.

How to Choose the Right Debt Payoff Strategy

When it comes to eliminating debt, two strategies dominate the conversation: the avalanche method and the snowball method. The avalanche method targets debts with the highest interest rates first, which minimizes the total interest you pay over time. If saving money is your top priority, avalanche is the way to go.

The snowball method, on the other hand, focuses on knocking out the smallest balances first. While you might pay a bit more in interest, the psychological boost of eliminating a debt quickly can be incredibly motivating. Research shows that people who use the snowball method are more likely to stick with their payoff plan because those early wins create a sense of progress.

Regardless of which method you choose, adding extra payments is one of the most powerful things you can do. Even an extra $50 per month can shave months off your timeline and save hundreds — sometimes thousands — in interest. The calculator above shows you exactly how much you'll save with any extra amount.

Once you've built your plan, the key is consistency. That's where Toffee comes in. Toffee is a free app for iOS and Android that tracks every payment, shows your projected debt-free date, and keeps you motivated with progress updates. Think of it as your debt payoff plan on autopilot — set your strategy, log your payments, and watch your balances shrink.

Frequently Asked Questions

Toffee does all of this automatically — try it free

How the Avalanche Math Works

The avalanche orders your debts by interest rate, highest first, because every dollar of balance on a high-rate debt costs more per month than the same dollar anywhere else. Take three debts: a $6,000 credit card at 24% APR, a $3,000 personal loan at 12%, and a $9,000 car loan at 7%. The avalanche sends every extra dollar to the credit card first — it's charging you $120 a month in interest all by itself — then the loan, then the car.

On those debts, minimum payments alone mean 50 months in debt and $6,478 in interest. Add $100 extra per month with the avalanche and you're done in 38 months with $4,023 in interest — a full year sooner and $2,455 kept in your pocket. The same $100 with the snowball method costs about $998 more, because it ignores rates when picking the target.

The catch is patience: your highest-rate debt is often a big balance, so the first full payoff takes a while. If you know you need early wins to stay motivated, compare both in our combined debt payoff calculator, or read the full avalanche method guide.

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