Free Debt Payoff Calculator See your debt-free date in seconds.
Enter one total or list each debt. Compare snowball and avalanche, drag the slider to see how extra payments move your date, and watch your balance shrink on a chart.
Calculate your debt-free date
All your debt as one total. Takes 20 seconds.
Add each debt to compare snowball and avalanche and see the order to pay them off.
Drag to see your debt-free date move. Even $25 makes a difference.
🔒 Your numbers stay on this device. Nothing is sent anywhere.
Snowball vs avalanche
Keep your debt-free date in your pocket
Paper & Prosperity is a free app that tracks every payment and counts down to your date. No bank connection, no subscription.
Estimates only, assuming fixed rates, fixed payments and no new charges. Interest is calculated monthly. This is educational and is not financial advice.
How does the debt payoff calculator work?
What it calculates
Each month, interest is added to your balance and your payment is subtracted. The calculator repeats this until the balance reaches zero, then reports the number of months, your debt-free date and the total interest you paid.
Why a small extra payment matters
Extra money goes straight to principal, so you pay interest on less each month. Even $50 can move your debt-free date closer.
Multiple debts?
Choose List my debts to enter each balance with its own interest rate and minimum payment. The calculator compares the snowball method (smallest balance first) with the avalanche method (highest interest first) and shows the order and month each debt is paid off. To track payments as you go, use the free Debt Simulator in Paper & Prosperity.
How to use this calculator
Total debt amount: Add up all the balances you want to pay off — credit cards, personal loans, medical bills, or any fixed debt. Leave out your mortgage if you're focusing on consumer debt first.
Monthly payment: Enter what you're actually paying each month, not just the minimums. If you pay minimums only, the calculator will show you exactly why that's expensive — usually several years and thousands of dollars more in interest.
Average interest rate: If you have multiple debts, use a rough average. For example, one card at 24% and one at 18% averages to 21%. For an exact answer, switch to List my debts and enter each balance with its own rate.
What do the results mean?
Months to payoff is the number of months until the balance hits zero, assuming no new charges and a consistent payment each month.
Debt-free date turns the month count into a calendar date so you can picture it — not just "43 months" but a specific month and year.
Total interest paid is how much extra you pay on top of the principal. The interest total surprises most people. A $10,000 balance at 22% APR with $250/month payments costs about $4,200 in interest before it's gone.
Extra each month is the slider. Drag it to add extra money each month and watch your debt-free date, interest and chart update instantly. Even a small increase makes a significant difference early in the payoff.
Why manual calculators have limits
The debt payoff calculator treats all your debt as one balance at one rate. That's useful for a quick estimate, but if you have three credit cards at different rates, the order you pay them off matters. The debt avalanche (highest interest first) saves the most money. The debt snowball (lowest balance first) builds momentum faster.
Paper & Prosperity's debt tracker lets you enter each balance separately, set your own payoff order, and see the estimated date each debt is paid off — plus a running total of interest saved. The tracker is free, and no account is required.
Common questions
- Does this include minimum payment calculations?
- No — enter the actual amount you plan to pay each month. If you only pay minimums, minimums change as your balance falls. This calculator assumes a fixed payment, so enter a fixed amount you can commit to.
- What if my interest rate changes?
- The calculator assumes a fixed APR. If you have a variable-rate card, use your current rate as an estimate. The result will be close enough to plan around, though the exact date will shift as rates change.
- How is interest calculated?
- Monthly: APR ÷ 12, applied to the remaining balance each period. This matches how most credit cards and personal loans calculate interest.
Debt payoff tips
Pick a strategy
Snowball pays the smallest balance first for quick wins. Avalanche pays the highest interest rate first and may reduce total interest.
Build a small buffer
A starter savings tracker helps you avoid new debt when surprises happen. See the free budgeting resources and our budget app comparison.
How can I pay off debt faster?
Small changes add up. Paying even a little above the minimum each month cuts interest and moves your debt-free date closer. Redirecting a windfall, such as a tax refund or bonus, to the balance can save months.
Run a few what-if scenarios above, then follow the plan in the debt payoff system.