This calculator adds up interest each month on every balance you enter, applies your minimum payments, then sends any extra money toward one debt at a time based on the strategy you pick. With the avalanche method, extra money goes to the debt with the highest interest rate first, which tends to save the most money overall. With the snowball method, extra money goes to the smallest balance first, which clears individual debts faster and can help keep you motivated. Once a debt is paid off, its old minimum payment gets rolled into the extra amount for whatever debt is next in line, so your payoff speeds up over time.

This is an estimate based on the numbers you enter and a fixed interest rate. Real cards and loans can have changing rates, fees, or promotional terms that shift the real payoff date. Treat this as general planning information, not financial advice.