HisabCalc

Debt Snowball Calculator

See how many months it takes to clear several debts when you pay the smallest balance first with one fixed monthly amount.

Enter your numbers

Example: 20000

Example: 50000

Example: 100000

Example: 12

Example: 12000

Result
Share on WhatsApp

Figures are computed on your device; nothing is sent anywhere.

Formula

sort debts smallest first; each month add interest = balance * annualRate / 100 / 12, then apply the fixed monthly payment to the smallest debt, roll the freed payment to the next, until all balances reach zero; monthsToClear = months; totalInterest = sum of interest; totalPaid = principal + interest; payoffOrder = debts cleared in order

How the calculation works

The calculator sorts the debts from smallest to largest and adds the monthly interest to every open balance each month.

It then throws the whole fixed monthly payment at the smallest balance, and once that is cleared the same payment moves to the next smallest.

The simulation repeats until every balance reaches zero, counting the months, the interest charged and the order in which the debts disappear.

Common mistakes

When to use it

Worked example

With debts of 20000, 50000 and 100000 taka, a 12 percent annual rate and a fixed 12000 taka monthly payment, the smallest is cleared first and the full set is paid off in 16 months with 14244 taka of interest and 184244 taka paid in total.

Months to clear 16
Total interest 14,244.00
Total paid 184,244.00
Debts cleared 3

Common questions

Why start with the smallest debt?

Clearing the smallest balance first gives a quick win that keeps you motivated, even though paying the highest interest debt first usually saves more money.

Last updated: 2026-10-03