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Loans & debt · 2 min

Debt Payoff Planner

List your debts and the total you can pay each month. The planner runs both classic strategies — smallest balance first (snowball) and highest rate first (avalanche) — and shows the payoff date and total interest for each, so you can pick with the numbers in front of you.

Currency-agnostic · symbol only Rules version 1.0 Reviewed July 2026

Your details

Σ
% / yr
Σ

The expensive card usually sits here.

% / yr
Σ
% / yr
Σ

Leave at 0 if you have three or fewer.

% / yr
Σ/ mo

Across all debts, minimums included.

Everything is calculated in your browser as you type. Nothing you enter is sent or stored, and no account is needed.

Your result

Debt-free in 2.3 years.

27 months

with the avalanche order at this budget

Snowball vs avalanche

Snowball — smallest firstAvalanche — highest rate first
Payoff order
Months to debt-free
Total interest paid
First debt cleared in

If you can find a little more each month

Monthly budgetDebt-free inTotal interest (avalanche)

What moves this result

Worth checking

The avalanche always pays the least interest; the snowball clears the first account faster. If an early win keeps you on the plan, the snowball's extra cost is the price of finishing, and it is usually small. Both numbers are on this page.

Check whether a balance transfer or consolidation loan beats both orders. Moving a 21% card balance to anything under 10% changes this table more than the strategy choice does.

The budget must at least cover the combined monthly interest, or no order works. If the planner says the budget is too low, that is the real finding, and the next call is to the lenders, not the spreadsheet.

Common questions

Snowball or avalanche — which pays off debt faster?
The avalanche (highest rate first) always finishes with less interest and the same or fewer months, because expensive debt dies sooner. On the example debts here the avalanche saves about $620, while the snowball closes its first account five months sooner. That trade is the whole choice, and both numbers are printed above.
How long will it take to pay off my debts?
Simulate it rather than guess: $22,100 across three debts at 6.9%, 21% and 11.5%, with $1,000 a month, is debt-free in about 27 months and roughly $3,000 of interest under the avalanche order. Every extra $100 a month cuts around 2–3 months off that.
Should I save or pay off debt first?
Keep a small emergency buffer (even one month of expenses), then attack any debt costing more than about 8–10% before building savings further, because no safe account pays what a 21% card charges. Below roughly 5%, splitting between saving and repaying is defensible either way.
How this is calculated

Everything below is calculated from your inputs. Nothing is fetched or stored.

each month: add interest (rate/12) to every balance, pay the target debt with everything left after the others' interest, roll each cleared debt's share into the next target. snowball → targets ordered by balance, smallest first avalanche → targets ordered by rate, highest first

Both plans are simulated month by month from the same budget, so the comparison is fair. Minimum-payment rules vary by lender; the planner uses the simplest honest version, which is interest kept current on every debt while the target gets the rest.

Limitations. Promotional 0% periods, minimums that exceed interest, and fees are outside this page. Four debts cover most households; if you have more, combine the smallest ones into one line at their average rate for a close answer.