Credit Card Payoff Calculator
Free credit card payoff calculator. Model snowball or avalanche payoff for multiple cards and see your debt-free date and total interest. No signup.
What is a credit card payoff calculator?
A credit card payoff calculator works out how long it takes to clear one or more credit card balances with a fixed monthly payment, and how much interest you pay along the way. It answers the two questions that matter: “when am I debt-free?” and “how much will this cost me?”
How this calculator works
- List each card as a balance and APR (one per line, e.g.
3500,22.99). - Enter your total monthly payment budget across all cards.
- Choose snowball (smallest balance first — quick wins) or avalanche (highest APR first — least interest).
- It simulates month by month: interest accrues, a 2% minimum (min $25) is paid on each card, and every spare dollar targets the card your strategy picked.
How to use the result
- Look at the debt-free date first — if it stretches into years, the monthly payment is too small.
- Compare total interest between snowball and avalanche. Avalanche usually saves money; snowball usually feels more motivating. Both beat paying cards randomly.
- Check the total paid against your principal. If interest is approaching half of what you owe, a balance transfer to a 0% card (for a fee) can pay for itself — run the numbers with your transfer fee as a one-off cost.
- Re-run whenever your payment changes, and roll every windfall into the target card.
Snowball vs. avalanche — which is better?
Avalanche mathematically costs less interest, because high-APR debt grows fastest. Snowball builds momentum by clearing small balances early, which keeps people consistent — and consistency matters more than a few points of APR. Both are valid; the best one is the one you stick to for the whole payoff.
Common mistakes
- Paying only the minimum. At 2% minimums, a $3,500 balance can take 20+ years and cost thousands in interest.
- Using the card while paying it down. New charges accrue interest immediately and stretch the payoff date.
- Ignoring that interest is monthly. Daily or monthly compounding means the rate you see is applied far more often than once a year.
The payoff math is the same engine that runs a loan amortization schedule — principal, rate, and term are three sides of one triangle. If you’re choosing between paying down cards and saving for retirement, the retirement calculator can show the growth you give up by saving later.