Numeros
Categories Financial Calculators Health Calculators Math Calculators Date & Time Construction Engineering Physics Business Education Lifestyle Converters Generators
About

Debt Payoff Calculator (Snowball Method)

By · Updated

The debt snowball method pays the minimum on every debt, then throws every extra dollar at the debt with the smallest balance first. Once it's paid off, that payment rolls onto the next-smallest debt, and so on. Enter up to three debts below to see your payoff order and timeline.

Debt Snowball Calculator

Live
Debt nameBalanceAPR %Min. payment
Debt-free in
13 months
Total interest paid
$611
Payoff order
—
Leave a balance at 0 to ignore an unused row.

How the snowball method works

Every debt gets at least its minimum payment, so nothing goes to collections. Any extra money — plus the minimum payments freed up from debts you've already cleared — goes entirely toward the debt with the smallest current balance. Once that one hits zero, its whole payment "snowballs" onto the next-smallest debt.

Why smallest balance first?

Mathematically, paying the highest-interest debt first (the "avalanche" method) saves slightly more money. The snowball method instead prioritizes quick wins — clearing a full debt early tends to build the motivation to keep going, which is why it's widely recommended despite costing a little more in interest.

Step-by-step guide

  1. List each debt with its name, current balance, APR, and minimum payment.
  2. Enter how much extra you can put toward debt each month, beyond the minimums.
  3. Read your payoff order — debts are automatically sorted smallest-balance-first.
  4. Check your debt-free timeline and total interest, then adjust the extra payment to see how it changes.

Common mistakes

Forgetting to keep paying the minimum on every other debt while snowballing extra payments onto one — missing minimums can trigger fees and hurt your credit.
Not rolling the freed-up minimum payment into the next debt once one is paid off — that rollover is what makes the snowball accelerate.

Frequently asked questions

Snowball vs. avalanche — which is better?

The avalanche method (highest interest rate first) saves more money mathematically. The snowball method (smallest balance first) tends to keep people motivated because they see debts fully disappear sooner. The best method is the one you'll actually stick with.

What if I have more than three debts?

Group smaller debts together as a single row, or run the calculation in two passes, combining the results. The underlying method is the same regardless of how many debts you have.

Does this account for changing interest rates?

No, it assumes each APR stays fixed for the whole payoff period. Variable-rate cards or loans may differ from this estimate if rates change.

Related calculators

See the complete Financial Calculators guide for the full list, or try: