Debt avalanche vs snowball calculator

Type your debts in the same order in the three lists. We compare both methods with the same budget: you choose the one that suits you.

Debt avalanche vs snowball calculator

E.g. 2500; 6000; 1200
%
Same order, e.g. 21.9; 7.5; 15
Same order, e.g. 75; 150; 35
At least the sum of the minimums.

Result

56.07Extra interest with the snowball

Avalanche: interest paid
920.01
Avalanche: months to pay it all
22
Avalanche: 1st debt cleared in month
9
Avalanche: order (debt no.)
1 → 3 → 2
Snowball: interest paid
976.08
Snowball: months to pay it all
22
Snowball: 1st debt cleared in month
5
Snowball: order (debt no.)
3 → 1 → 2

Debt avalanche vs snowball calculator

Inputs

Amounts owed
2500; 6000; 1200
Rate per year of each debt
21.9; 7.5; 15
Minimum payments per month
75; 150; 35
Total budget per month
500

How it is calculated

Each month: interest on each debt, then each debt’s minimum, then the rest of the budget goes to one target debt.

Result

Extra interest with the snowball

56.07
Avalanche: interest paid
920.01
Avalanche: months to pay it all
22
Avalanche: 1st debt cleared in month
9

How it is calculated

  1. Each month: interest on each debt, then each debt’s minimum, then the rest of the budget goes to one target debt.
  2. Avalanche: the target is the debt with the highest rate. It usually lowers the interest.
  3. Snowball: the target is the smallest debt. It often clears a first debt sooner, which keeps some people motivated.
  4. When a debt is cleared, its minimum goes to the next target (the budget stays the same).

Example

Debts 2,500 (21.9%), 6,000 (7.5%) and 1,200 (15%), budget 500 a month: avalanche 920.01 of interest, snowball 976.08, a gap of 56.07; the snowball clears a 1st debt in month 5 instead of 9.

Good to know

  • Fixed rates and no new purchases.
  • No method is imposed: the right choice also depends on your motivation.

Frequently asked questions

What is this tool used for?

Type your debts in the same order in the three lists. We compare both methods with the same budget: you choose the one that suits you.

How is the result calculated?

Each month: interest on each debt, then each debt’s minimum, then the rest of the budget goes to one target debt.

What should I check before using the result?

Fixed rates and no new purchases.

Updated October 10, 2026

Indicative result. For an important decision, check with a professional.