Money · Debt

Debt Payoff Calculator

List your debts, add what you can pay each month, and compare the snowball and avalanche methods side by side: which is faster, which costs less, and what to pay off first.

On top of all the minimum payments.
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Snowball vs. avalanche: what's the difference?

Both methods pay the minimum on every debt and put every extra dollar toward one target. When a debt is paid off, its payment rolls over to the next one, so your payments "snowball" over time.

How to use this calculator

Enter each debt's balance, interest rate (APR) and minimum payment from your statements. Add the extra amount you can pay each month beyond the minimums. The result compares both methods and lists the order and month each debt would be paid off.

How it's calculated

Each month: add interest (balance × APR ÷ 12) → pay every minimum → send all leftover money to the target debt Your monthly budget stays the same (all minimums + extra) until everything is paid, so freed-up minimums roll into the next debt. Assumes no new charges, fees or rate changes.

Worked example

Three debts with $200 extra a month: a $3,000 card at 12% (min $90), an $8,000 card at 26% (min $200) and a $12,000 car loan at 7% (min $300).
  1. Avalanche pays the 26% card first: debt-free in 36 months with about $4,750 in interest
  2. Snowball pays the $3,000 card first: also 36 months, but about $5,430 in interest
  3. Avalanche saves about $680 here; snowball clears the first debt 16 months sooner

Common questions

Which method is better?

Avalanche usually saves more money. Snowball can be easier to stay motivated with. The best method may be the one you'll keep doing, and this calculator shows how much the choice costs with your numbers.

Should I include my mortgage?

Many people leave out the mortgage and focus on consumer debt such as credit cards, personal loans, medical bills and car loans. You can include it if you'd like to see the full picture.

What if a debt has a 0% promotional rate?

Enter 0% for now, but note when the promotion ends. If a deferred-interest promotion could charge back interest, it may be worth clearing before the deadline.

Would consolidation help?

A consolidation loan or balance transfer at a lower rate can reduce interest, but watch for fees and avoid running the old balances back up. Try the personal loan calculator to compare.

Disclosures

Results are estimates for educational purposes only and are not financial, investment, tax or legal advice, or an offer of credit. They depend on the inputs and assumptions shown, and actual results will vary. High Label LLC is not a bank, lender, broker-dealer, investment adviser or tax preparer.

Assumes no new charges, fees or rate changes, and that minimum payments stay fixed. Card issuers may calculate interest daily and recalculate minimums, so actual results can differ. This is not credit counseling.

Calcella is operated by High Label LLC (California). We may earn money from ads and clearly labeled sponsored or affiliate links; this never changes how a calculator works or what it shows.