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Debt Avalanche Calculator

Simulate paying off debts highest interest rate first.

Introduction

Debt Avalanche Calculator — Simulate paying off debts highest interest rate first. Enter Balances (comma separated), Rates % (comma separated, same order), Extra monthly payment to get an instant, accurate result.

Formula

Each month, minimum payments are made on every debt while extra payment is directed to the debt with the highest interest rate; once it's paid off, its former payment rolls into the next-highest-rate balance, and so on until all debts are cleared.

Step-by-step

  1. Enter the Balances (comma separated).
  2. Enter the Rates % (comma separated, same order).
  3. Enter the Extra monthly payment.
  4. Click Calculate to see your result instantly.

Real-world example

Example: With Balances (comma separated) = 5000, 2000, 8000, Rates % (comma separated, same order) = 18, 22, 6, Extra monthly payment = 200, the Debt Avalanche Calculator gives Months To Payoff: 35, Total Interest Paid: 2426.8629.

Frequently Asked Questions

Why is avalanche usually cheaper than snowball?
By targeting the highest interest rate first, less total interest accrues over time compared to prioritizing by balance size, even though both methods use the same total payment amount.
How is the minimum payment on each debt determined?
It is estimated as the greater of 2% of the balance or a $25 floor, applied to every debt each month.
What inputs does the Debt Avalanche Calculator need?
You'll need to provide: Balances (comma separated), Rates % (comma separated, same order), Extra monthly payment. All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Debt Avalanche Calculator?
The Debt Avalanche Calculator applies the formula exactly as calculated — Each month, minimum payments are made on every debt while extra payment is directed to the debt with the highest interest rate; once it's paid off, its former payment rolls into the next-highest-rate balance, and so on until all debts are cleared. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Are these results guaranteed?
No. The Debt Avalanche Calculator gives an estimate based on the numbers you enter and standard financial formulas — actual rates, fees, taxes, and terms vary by lender, institution, and jurisdiction, and can change over time. This is not financial advice; consult a qualified financial professional for decisions specific to your situation.
Is the Debt Avalanche Calculator free to use?
Yes, the Debt Avalanche Calculator is completely free, requires no signup, and runs instantly in your browser.

About the Debt Avalanche Calculator

The Debt Avalanche Calculator uses a real, verifiable formula — Each month, minimum payments are made on every debt while extra payment is directed to the debt with the highest interest rate; once it's paid off, its former payment rolls into the next-highest-rate balance, and so on until all debts are cleared. — so results are accurate every time, not an approximation.