Credit Card Payoff Calculator
At a fixed monthly payment, your payoff time depends on balance, APR and payment. Interest accrues on the balance each month; whatever you pay above it reduces principal. This calculator finds the months to zero, the total interest, and what it takes to clear the card in 12, 24 or 36 months.
Use this credit card payoff calculator to turn a balance into a plan. Enter your balance, APR and the fixed amount you can pay each month — it simulates the payoff month by month to show how long it takes and how much interest you will pay, plus a table of the payments needed to be debt-free on a set timeline.
Enter your balance, APR and monthly payment, then press Calculate to see your payoff.
How the credit card payoff calculator works
Paying off a card is a race between your payment and the interest the balance generates. This calculator runs that race month by month. Each month it adds interest — your APR divided by twelve applied to the balance — then subtracts your fixed payment, and repeats until the balance reaches zero. The result is the exact number of months to be free of the card and the total interest you paid getting there. Because the simulation is real rather than a rough formula, it also catches the case where a payment is too small to ever clear the debt.
The lesson almost always is the same: the payment amount matters enormously. A little more each month shortens the payoff and slashes interest, because the extra goes entirely to principal. The table shows the flip side — the payment required to be done in 12, 24 or 36 months — so you can pick a deadline instead of a payment. To see how ruinous the opposite approach is, compare this with the minimum payment calculator.
How payoff is simulated
- Progress needs — payment > monthly interest
- Total interest — sum of all monthly interest
- To hit a deadline — solve for the level payment
Why the payment amount is everything
Credit card math rewards aggression. At 22% APR, the first slice of every payment is eaten by interest, and only the remainder chips at the balance. Raise the payment and two things happen at once: more principal falls immediately, and the smaller balance accrues less interest next month, compounding the benefit. That is why bumping a $250 payment to $350 does not just shorten the payoff by 40% — it can cut total interest by more than half. If you can direct a windfall, tax refund or bonus at the card, the savings are outsized.
Pick a deadline, not just a payment
Many people find it easier to commit to being debt-free by a date than to a payment amount. The table flips the calculation: instead of asking how long a payment takes, it asks what payment clears the card in 12, 24 or 36 months. Choosing a deadline turns a vague intention into a concrete monthly number you can budget around. Pair it with the debt payoff planner if you are juggling several balances and want an order to attack them.
Should you use a balance transfer?
A balance transfer moves your debt to a new card offering a 0% introductory APR, often for 12 to 21 months, so every dollar you pay during that window goes to principal instead of interest. It can be one of the fastest ways out of card debt — but only if the math works. Nearly all transfers charge a fee of 3% to 5% of the amount moved, so the interest you save has to beat that fee. On a $6,000 balance a 3% fee is $180; if you would otherwise pay far more than that in interest, the transfer wins. The two traps are the post-promo rate, which can be as high as the card you left, and new spending on the freed-up old card. Used with discipline — transfer, stop spending, and clear the balance before the promo ends — it is a powerful tool. Note that a balance transfer is completely different from a cash advance, which borrows cash against your card at a high rate with interest from day one.
Estimate only — not financial advice. Issuers typically compound interest daily and may apply fees, so your exact figures can differ slightly. Rates and terms are set by your card agreement.
How to use it & key terms
Enter your balance, the card's APR and the fixed monthly payment you can make, then press Calculate to see the payoff time, total interest and the payments needed to be done in 12, 24 or 36 months.
| Term | What it means |
|---|---|
| Balance | The amount you currently owe on the card. |
| APR | Annual percentage rate — the yearly interest rate. |
| Monthly rate | APR divided by twelve, applied to the balance. |
| Payoff time | Months of fixed payments to reach a zero balance. |
| Total interest | All interest paid over the payoff period. |
| Principal | The part of a payment that reduces the balance. |
Sources & methodology
The calculator simulates the payoff month by month: it adds one month of interest (APR divided by twelve times the balance), subtracts your fixed payment, and repeats until the balance reaches zero, counting the months and summing the interest. The final payment is trimmed so the balance does not go negative. If the payment does not exceed the first month's interest, it reports that the card cannot be paid off at that amount. The deadline table solves the standard amortization formula for the level payment that clears the balance in 12, 24 and 36 months. Most issuers compound daily, so real figures may vary slightly.
Sources: Standard revolving-credit interest method (monthly periodic rate = APR ÷ 12) and the amortization formula for fixed-term payoff, consistent with Consumer Financial Protection Bureau explanations of credit card interest.
Two ways to order multiple cards: avalanche vs snowball
This calculator focuses on clearing a single balance, but many people are juggling several cards at once, and the order you pay them in changes both the cost and how it feels. Two strategies dominate, and they optimise for different things. The avalanche method targets the card with the highest interest rate first while paying the minimum on the rest; the snowball method targets the smallest balance first, regardless of its rate. Neither is wrong — they simply answer different questions, one about money and one about motivation.
The avalanche is the mathematically cheaper route. Interest is what makes debt grow, so attacking the highest-rate balance first stops the most expensive interest as early as possible, which means you pay less in total and usually finish a little sooner. The saving grows with the gap between your cards' rates — the more your rates differ, the more avalanche pulls ahead. If you are driven mainly by the numbers and can stay disciplined without visible quick wins, it squeezes the most out of every dollar you put toward the debt.
The snowball trades a little math for a lot of momentum. By clearing the smallest balance first, you eliminate an entire card — and one whole monthly payment — quickly, and that freed-up payment rolls onto the next-smallest balance, then the next. The total interest is usually slightly higher than avalanche, but the run of early victories keeps many people motivated enough to actually finish, and a plan you stick with beats a cheaper plan you abandon. For most households the best method is simply the one they will follow to the end.
Whichever you pick, two habits make either work: pay a fixed total each month rather than letting it drift down with the minimums, and roll every freed-up payment straight onto the next card instead of absorbing it back into spending. That rolling payment is the engine behind both methods. You can model a single card's payoff above, and when you are ready to sequence several debts together, the debt payoff calculator compares the avalanche and snowball order side by side so you can see the difference in time and interest before you commit.
Frequently asked questions
How long will it take to pay off my credit card?
It depends on your balance, APR and monthly payment. The calculator simulates each month — interest is added, your payment is subtracted — until the balance hits zero. A higher fixed payment clears the card much faster because more of each payment goes to principal instead of interest.
How is credit card interest calculated?
Credit card interest is based on your APR divided by twelve applied to the balance each month (most issuers compound daily, but monthly is a close estimate). On a 22% APR, the monthly rate is about 1.83%, so a $6,000 balance accrues around $110 in the first month before your payment is applied.
Why does paying more save so much?
Every dollar above the interest charge goes straight to reducing the balance, which then accrues less interest the next month — compounding in your favor. Raising a fixed payment even modestly can cut both the payoff time and the total interest dramatically compared with a smaller payment.
What if my payment barely covers the interest?
If your monthly payment is less than or equal to the monthly interest, the balance never falls and the card is never paid off — the debt can even grow. The calculator flags this. To make progress you must pay more than the interest that accrues each month.
Should I pay off the card or invest?
Credit card APRs are usually far higher than typical investment returns, so paying off the card is often the better guaranteed return. Clearing a 22% balance is like earning 22% risk-free. Build a small emergency fund first, then attack high-interest debt before investing beyond any employer match.
Does a balance transfer help?
A 0% balance transfer can pause interest for a promotional period, letting more of each payment reduce principal. Watch for the transfer fee, usually 3% to 5%, and the rate after the promo ends. It helps most if you can clear the balance before the standard APR returns.
What is the difference between the debt snowball and avalanche?
Both are strategies for paying off multiple debts. The debt snowball targets the smallest balance first for a quick, motivating win, then rolls that payment onto the next. The avalanche targets the highest APR first, which saves the most interest and clears debt fastest mathematically. Snowball wins on psychology, avalanche on maths — pick whichever keeps you paying.
What is the difference between a balance transfer and a cash advance?
They sound similar but work very differently. A balance transfer moves an existing balance to a new card, usually at a 0% introductory rate, to save interest. A cash advance withdraws cash against your card's limit; it carries a high APR, charges interest immediately with no grace period, and adds a cash-advance fee. A balance transfer is a payoff tool; a cash advance is one of the most expensive ways to borrow.
Can you amortize a credit card?
Not in the usual sense. A credit card is revolving debt with no fixed end date, so it has no built-in amortization schedule like a mortgage or car loan. But if you commit to a fixed monthly payment, the balance amortizes down to zero over time — which is exactly what this calculator models. Enter your balance, APR and a fixed payment to see the effective payoff schedule.