DebtFlow

Free Debt Avalanche Calculator

Pay off your highest-interest debts first to save the most money overall. Enter your debts below and see how much interest you'll save.

Your Debts

Extra Monthly Payment

How much extra can you put toward debt each month, beyond minimums?

How the Debt Avalanche Method Works

1

List All Your Debts

Enter every debt — credit cards, student loans, personal loans, medical bills. Include the balance, interest rate (APR), and minimum payment for each one.

2

Attack Highest Interest First

Make minimum payments on everything, then pour every extra dollar into the debt with the highest interest rate. This stops the most expensive debt from growing.

3

Save Maximum Money

As high-interest debts disappear, you redirect those payments to the next highest rate. You save the most money possible on interest — the mathematically optimal approach.

Avalanche vs Snowball: Which Is Right for You?

Debt Snowball

  • Pay smallest balances first
  • Quick wins build momentum
  • Best for motivation & consistency
  • Popularized by Dave Ramsey

Debt Avalanche

  • Pay highest interest rates first
  • Saves the most money overall
  • Mathematically optimal
  • Best for disciplined savers

Frequently Asked Questions

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