Credit Card Payoff Calculator

How long to clear a balance. And the interest cost.

Details

$
%
Solve for
$

Time to pay off

2 yr 10 mo

Paying $200 per month

Total interest$1,750
Total paid$6,750

This works out how long a credit card balance takes to clear, and what it costs in interest. Enter the balance, the APR and either what you can pay each month or the date you want to be free of it.

It returns the payoff time, the total interest, and the total you will have handed over by the end.

How credit card interest works

Credit card interest is charged on your remaining balance, every month, and it compounds. So the debt grows from what is left, not from what you originally borrowed.

The APR is the annual rate. Divide it by 12 for the monthly rate: 22% APR is about 1.83% a month. On a $5,000 balance that is roughly $92 of interest in the first month alone.

That figure explains everything about card debt. A payment of $100 against a $5,000 balance at 22% clears about $8 of actual debt in the first month. Almost the whole payment goes to the lender.

$5,000 at 22% APR: what the payment size does
$100/mo11.4 years, $8,678 interest
$150/mo4.3 years, $2,798 interest
$250/mo2.1 years, $1,285 interest

Paying 50% more each month cuts the time by nearly two thirds and the interest by more than two thirds. The relationship is nothing like proportional.

What to enter

Card balance
What you currently owe. Use the statement balance rather than the available credit.
Interest rate (APR)
From your statement. Purchases, balance transfers and cash advances often carry different rates, and cash advances are usually the highest.
Solve for
Enter a monthly payment to find the time, or a target date to find the payment needed.
Annual fee / other fees
Included in the total cost, because a card with a fee and a lower rate is not automatically cheaper.

What this assumes

No new spending on the card. Adding purchases while paying it down is the most common reason a balance never moves.

The APR stays the same. Promotional and introductory rates expire, often sharply.

Payments are made on time. A missed payment can trigger a penalty APR on some cards.

How to calculate how long it takes to clear a card

Each month, interest is added first and your payment is applied after. What is left over is what actually reduces the debt.

monthly interest = balance × (APR ÷ 12)
APR ÷ 12
The monthly rate. 22% APR is about 1.83% a month
balance
What is still owed, so this shrinks as you pay
  1. Work out the monthly interest. $5,000 at 22% APR: 5,000 × 0.0183 = about $92.

  2. Subtract it from your payment. A $100 payment leaves about $8 to reduce the balance. A $250 payment leaves about $158.

  3. Repeat on the smaller balance. Next month's interest is slightly less, so slightly more of the payment reaches the debt. Progress accelerates.

  4. Pay above the minimum. Minimum payments are typically set near the interest charge, which is what stretches a balance over a decade.

See a worked example: $5,000 at 22% APR, paying $100 against $150 a month
Balance
$5,000
APR
22%

First month's interest: $5,000 × 0.0183 = $91.67.

Paying $100 leaves $8.33 towards the debt. At that pace it takes 11.4 years and costs $8,678 in interest.

Paying $150 leaves $58.33 towards the debt in month one.

That clears it in 4.3 years for $2,798 of interest.

So $50 more a month saves about $5,880 and seven years.

$150/mo instead of $100 saves ~$5,880

Frequently asked questions

Problems people actually run into

Paying down the card while still spending on it

This is why balances sit still for years. Someone pays $300 a month and puts $250 of groceries back on, so the balance falls by $50 while the statement shows a healthy-looking payment.

If you are seriously clearing a card, stop using it. Move day-to-day spending to a debit card until the balance is gone.

Treating the minimum payment as the expected payment

The minimum is the least you can pay without defaulting. It is not a suggestion for how to clear the debt, and it is calculated to keep the balance alive for as long as possible.

Any fixed amount above the minimum works better, because as the balance falls the minimum falls too, which keeps stretching the term. Paying a flat $150 a month beats paying whatever the minimum happens to be.

Results are estimates for general information only and are not professional financial, medical, or legal advice. Read our full disclaimer.

Sources

Last updated: September 4, 2026