List every debt with its balance, APR and monthly payment and see how many months each one takes to pay off.
Enter each balance, APR and monthly payment. The template shows how many months each debt takes; with the snowball method you pay the smallest balance first and roll its payment into the next.
The file works in Excel, Numbers, Google Sheets and LibreOffice. If you would rather have it done for you, Xpenses reminds you of every bill and works out how much you will have at the end of each month.