How to use this calculator
- Enter your current card balance and the purchase APR. Both are on your latest statement.
- Choose what you want to work out. How long at a set payment shows your payoff date for an amount you can afford each month. Payment to be debt-free by a date shows the monthly amount needed to clear the card in a set number of months.
- Read the result. You’ll see your payoff date, the total interest, and how your plan compares with paying only the minimum.
Results update as you type. Nothing you enter is sent anywhere: the math runs in your browser. If you have several cards or loans, the debt snowball vs avalanche calculator shows which one to pay first.
The formula behind the numbers
Credit card interest is charged on the balance you carry from month to month. The calculator works through your plan one month at a time:
Interest this month = Balance × APR ÷ 12
New balance = Balance + Interest − Payment
It repeats this until the balance reaches zero. The last payment is only what’s left. To find the payment that clears a card in a set number of months, it uses the standard loan payment formula, then rounds up to the cent so the plan always finishes on time:
Payment = Balance × r ÷ (1 − (1 + r)−n)
where r = APR ÷ 12 and n = number of months
One number decides whether a plan works at all: the first month’s interest. If your payment isn’t higher than that, the balance never goes down.
Why minimum payments take so long
Most card issuers set the minimum payment as a small share of the balance plus that month’s interest, with a fixed floor. This calculator assumes a common rule: 1% of the balance plus interest, or $25, whichever is higher. Your card’s rule may be different, and it’s shown on your statement.
Because the minimum shrinks as the balance shrinks, only about 1% of the balance is repaid each month. Most of every payment goes to interest, and the payoff stretches over many years. In the United States, your statement also carries a “Minimum Payment Warning” that shows how long minimum payments would take and what you’d need to pay to clear the balance in three years.
Worked example
These are the numbers the calculator loads with: a $6,500 balance at 22.8% APR. The first month’s interest is $123.50 ($6,500 × 0.228 ÷ 12).
| $250 a month | Minimum payments only | |
|---|---|---|
| First payment | $250.00 | $188.50 |
| Paid off in | 37 months (3 years 1 month) | 258 months (21 years 6 months) |
| Total interest | $2,549 | $11,264 |
| Total paid | $9,049 | $17,764 |
A steady $250 a month clears the card more than 18 years sooner and saves $8,716 in interest. The minimum-only plan starts at $188.50, but the minimum keeps falling as the balance falls. After about 17 years it hits the $25 floor, which is why the last few hundred dollars take so long.
If you’d rather set a deadline, here’s what the same card needs each month:
| Debt-free in | Monthly payment | Total interest |
|---|---|---|
| 12 months | $610.87 | $830 |
| 24 months | $339.79 | $1,655 |
| 36 months | $250.94 | $2,534 |
| 48 months | $207.63 | $3,466 |
| 60 months | $182.50 | $4,449 |
The 60-month payment of $182.50 is below this card’s first minimum of $188.50, so that plan wouldn’t be allowed. The calculator warns you when that happens.
Ways to pay off a credit card faster
- Pay a fixed amount, not the minimum. Keep paying the same dollar amount even as the minimum drops. In the example above, that alone saves thousands.
- Stop adding new purchases. The calculator assumes no new charges. Every new purchase pushes your payoff date back.
- Ask for a lower APR. If you’ve paid on time, your issuer may agree to lower the rate. Enter the new rate above to see what it saves.
- Consider a balance transfer, carefully. A 0% intro offer can cut interest, but there’s usually a transfer fee and the rate jumps when the promotion ends.
- Put windfalls toward the balance. A tax refund or bonus paid early in the plan saves the most interest.
Frequently asked questions
How long will it take to pay off my credit card?
It depends on three things: the balance, the APR and your monthly payment. Enter them above and the calculator shows the exact month. As a rule, any payment well above the first month’s interest gets you there in a few years. Minimum payments alone can take decades.
How much should I pay to clear my card in a year?
Choose “Payment to be debt-free by a date” and enter 12 months. For the example card ($6,500 at 22.8% APR) it’s $610.87 a month, with $830 in total interest.
Why does the calculator say my card will never be paid off?
Your payment is equal to or less than the interest charged each month, so the balance can’t go down. Raise the payment above the “Interest this month” figure shown in the results.
Why might my card issuer’s numbers be slightly different?
Most issuers charge interest daily on your average daily balance, and the number of days in each billing cycle varies. This calculator uses APR ÷ 12 each month, which is very close but not identical. Fees, new purchases and rate changes also aren’t included.
What if I have more than one credit card?
Use the debt snowball vs avalanche calculator. It plans all your cards and loans together and shows which one to pay off first.
Is my information saved or shared?
No. The calculator runs entirely in your browser. If you use “Copy link to results”, your numbers are stored only in that link, so share it only with people you trust.
This calculator is for education and planning. It assumes a fixed APR, no new purchases or fees, and on-time payments, and it isn’t financial advice. Your card issuer’s figures may differ slightly because of how they calculate daily interest.