Debt Snowball Calculator

What this calculator does

The debt snowball calculator builds a complete payoff plan from your current balances, interest rates, and minimum payments. It orders your debts from the smallest balance to the largest, then shows a month-by-month schedule for clearing each one. You see your total interest, the number of months to zero, and the exact date you finish.

When the smallest debt is paid off, its payment rolls onto the next debt, so the amount you put toward each balance grows over time. That rolling effect is what gives the method its name and what makes the later debts disappear faster than you might expect.

When to use this method

Choose the snowball method when motivation matters more than maths. Clearing a full account early gives you a quick win, and those wins keep most people on track. If you have several small balances, you can often close one or two within the first few months, which frees up cash flow and cuts the number of bills you juggle.

If your main goal is paying the least interest overall, the debt avalanche calculator targets your highest-rate debt first instead. Not sure which fits? Run both and compare the difference before you commit.

How to get started

Start by listing every debt with its balance, APR, and minimum payment. Enter them above, add any extra monthly amount you can spare, and the calculator handles the order for you. To see how a bigger payment changes your timeline, try the extra payment impact tool, or set a target with your debt-free date.

UK readers can use the UK snowball calculator for pound figures. Once you have a plan, the hardest part is consistency: keep the payment steady each month and let the snowball do the work.