There are two popular ways to pay off multiple debts, and people argue about which is better. The honest answer: it depends on whether you optimise for money or for motivation. A free debt payoff calculator settles it by showing both methods side by side with your actual numbers — including the exact date you'd be debt-free.
The two methods
Debt Avalanche — pay minimums on everything, throw all extra money at the highest interest rate (APR) first. Mathematically the cheapest and usually the fastest route to debt-free.
Debt Snowball — pay minimums on everything, throw all extra at the smallest balance first. You clear whole debts quickly, which feels motivating and keeps you going.
Both roll the freed-up payment onto the next debt as each one clears. That rollover is what gives them momentum.
A real example
Say you have three debts and can put an extra $200/month toward them:
| Debt | Balance | APR | Min payment |
|---|---|---|---|
| Credit Card | $6,000 | 22.9% | $150 |
| Car Loan | $12,000 | 7.5% | $280 |
| Student Loan | $18,000 | 5.5% | $200 |
- Avalanche attacks the credit card first (22.9% is bleeding you), then the car, then the student loan.
- Snowball also starts with the credit card here (it's both the smallest and highest-rate), then clears the car, then the student loan.
When the orders differ, the calculator shows you the gap: avalanche almost always pays less total interest, while snowball sometimes clears an individual debt a month or two sooner. Seeing the exact dollar and time difference makes the choice easy.
How to build your plan
- Open the free debt payoff calculator
- Add each debt's balance, APR and minimum payment (add or remove rows freely)
- Enter the extra amount you can pay each month above the minimums
- Compare the Avalanche vs Snowball cards — debt-free date, total interest, total paid
- Pick a method and follow the numbered payoff order
Why the extra payment matters so much
Minimum payments mostly cover interest, so balances barely move. Every extra dollar goes straight to principal — and the moment one debt clears, its whole payment rolls onto the next. That compounding is why even $100–$200 a month can pull your debt-free date in by years.
The calculator simulates this month by month: it accrues interest on each balance, pays the minimums, applies your extra to the priority debt, and rolls payments forward as debts disappear. The debt-free dates and payoff order reflect that full simulation — not a rough estimate.
Works for any debt mix
Credit cards, car loans, personal loans, student loans, store cards — add any combination, each with its own balance, APR and minimum. Switch between USD, GBP, EUR, CAD and AUD. A rate-and-debt news panel below shows the latest US and UK/EU/AU policy rates, updated weekly.
Related Tools
- free mortgage calculator with PMI and taxes — model your largest debt's monthly payment and payoff date alongside your smaller balances
- loan EMI calculator with amortization schedule — see the month-by-month principal vs interest breakdown for a single loan
- convert currencies with live exchange rates free — useful if some of your debts are held in a different currency
See your own debt-free date under both methods with the free debt payoff calculator →
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