Debt Payoff Calculator
Add your debts and an extra monthly payment, then compare the avalanche and snowball strategies to see your debt-free date and total interest.
This free calculator is from The Budget Ledger, practical money guidance for everyday budgets and real-life planning.
Avalanche vs. snowball, which is right for you?
The avalanche method targets your highest interest rate first. It's mathematically optimal, you'll pay the least interest and get out of debt soonest. The snowball method targets your smallest balance first. It costs a little more in interest, but the quick wins keep you motivated, which is why many people actually finish with it.
Choose the avalanche if you're driven by numbers and have high-interest debt. Choose the snowball if you've struggled to stay motivated before, or if your debts are all at similar rates (where the avalanche's advantage shrinks anyway).
Want the full walkthrough? Our guides on the debt snowball method and debt avalanche vs. snowball break down each strategy with real numbers, and the debt snowball worksheet gives you a printable to track it.
Debt negotiation tips
- Call your credit card company and simply ask for a lower interest rate, it works more often than people expect.
- Medical bills are frequently negotiable; ask about discounts or interest-free payment plans.
- Stop adding new debt while you pay off the old, you can't bail out a boat while drilling new holes.
Frequently asked questions
Which is better, the debt avalanche or debt snowball?
The avalanche (highest interest rate first) saves the most money and time mathematically. The snowball (smallest balance first) costs a little more interest but delivers quick wins that keep you motivated, which is why many people actually finish with it. Pick avalanche if you are driven by numbers, snowball if motivation has been your struggle.
How does the debt payoff calculator work?
Enter each debt with its balance, interest rate, and minimum payment, plus any extra you can put toward debt each month. The calculator applies the avalanche or snowball order, then shows your debt-free date, total interest, and a month-by-month payoff schedule so you can compare the two strategies.
How can I pay off $10,000 in debt fast?
Free up as much extra payment as you can, then throw all of it at one debt at a time while paying minimums on the rest. On a $10,000 balance, an extra $300 to $500 a month can cut a payoff from years to well under two, and asking your card issuer for a lower rate speeds it up further.
Should I pay off debt or save first?
Build a small $1,000 starter emergency fund so a surprise does not create new debt, then attack high-interest debt (credit cards above roughly 15 to 20%) aggressively, since paying that off is a guaranteed return no savings account can match. Build the full emergency fund after the expensive debt is gone.
Does the calculator account for interest as balances shrink?
Yes. It calculates interest on each remaining balance every month, so the debt-free date and total-interest figures reflect real compounding, not just balance divided by payment. That is why paying a little extra shortens the timeline more than it first appears.