BYTETOOLS

Debt Payoff Calculator

Plan how fast you can clear multiple debts using the snowball or avalanche method. See payoff time, total interest and payment order. Free and private.

2y 7m
Payoff time
31
Total months
$1,565.38
Total interest

Payoff order

  1. 1. Credit cardcleared in month 17
  2. 2. Car loancleared in month 31

Estimates only, not financial advice. New spending, fees and rate changes will alter the real payoff timeline.

  • Handles multiple debts with individual rates and minimums
  • Snowball (smallest balance) and avalanche (highest APR) strategies
  • Rolls freed-up payments onto the next target debt
  • Reports payoff months, total interest and clearance order
  • Warns when minimum payments cannot cover interest
  • Fully private — nothing is uploaded or stored

How to use the Debt Payoff Calculator

  1. 1

    Add each debt with its balance, annual rate (APR) and minimum monthly payment.

  2. 2

    Enter any extra amount you can put toward debt each month.

  3. 3

    Choose the snowball or avalanche payoff strategy.

  4. 4

    Review the payoff time, total interest and the order each debt is cleared.

About the Debt Payoff Calculator

The ByteTools Debt Payoff Calculator shows how quickly you can become debt-free when you add several balances, their interest rates and minimum payments. Add an extra monthly payment and choose a strategy — snowball (smallest balance first) or avalanche (highest rate first) — to see the full plan.

It simulates every month for you, applying interest and rolling freed-up payments onto the next debt, then reports the payoff time, total interest paid and the order your debts are cleared. It is built for anyone tackling credit cards, loans or store cards. Everything runs locally in your browser.

These figures are estimates for planning only and are not financial advice. Real balances change with new spending, fees and rate changes, so revisit the plan as your situation evolves.

Frequently asked questions

What is the difference between the snowball and avalanche methods?

The snowball method pays off the smallest balance first for quick wins and motivation, while the avalanche method targets the highest interest rate first to minimise total interest. Avalanche usually costs less overall; snowball can feel more rewarding early on.

Which debt payoff strategy saves the most money?

The avalanche method almost always saves the most in interest because it clears your most expensive debt first. Try both strategies in the calculator to compare the total interest and payoff time for your exact debts.

Why does the calculator warn that payments don't cover interest?

If a debt's minimum payment is smaller than the interest it accrues each month, the balance grows instead of shrinking and can never be repaid. The warning means you need a larger payment or extra contribution to make progress on that debt.

How does an extra monthly payment help?

The extra amount is added to the minimum on your target debt, clearing it faster. Once a debt is paid off, its payment rolls onto the next one, snowballing your progress and cutting both the time and total interest.

Is my debt information kept private?

Yes. The whole simulation runs in your browser with JavaScript. Your balances and rates are never sent to a server, stored or shared with anyone.

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