- Enter the requested amounts and assumptions.
- Keep time periods and units consistent.
- Review the main result and the supporting comparisons.
- Change one input at a time to test alternatives.
Debt Snowball Calculator
Model a debt snowball that sends minimum payments to every balance and directs extra money to the smallest remaining balance. Paid-off payments roll into the next target.
Your inputs
$
$
%
$
$
%
$
$
%
$
$
%
$
Result
—
Estimated payoff time
Years to payoff—
Total interest—
Total amount paid—
Interest saved vs minimums—
Time saved vs minimums—
Each month, interest is added at APR ÷ 12, minimum payments are applied, and the extra budget goes to the smallest active balance.
What the result means
The main result summarizes the calculation using the values currently shown above. Supporting figures expose the most useful tradeoffs instead of hiding them in one total.
Actual lenders may calculate interest daily and apply payments differently.
The default four-debt plan uses $650 in minimum payments plus $300 extra each month; the calculator simulates the balance month by month.
What should I enter in the Debt Snowball Calculator?
Use figures from the same time period and keep every monetary amount in the same currency.
Does this tool include taxes?
No. Results are planning estimates before taxes unless an input explicitly accounts for them.
Can I use a currency other than dollars?
Yes. The arithmetic is currency-neutral; treat the dollar symbol as your chosen currency and stay consistent.
Why might my real result differ?
Actual lenders may calculate interest daily and apply payments differently. Rounding and changing future inputs can also affect the outcome.
How often should I update the estimate?
Recalculate whenever a major input changes so the comparison remains useful.