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Credit Card Minimum Payment Calculator
Use this free credit card minimum payment calculator to see what paying only the minimum really costs. Enter your balance, your APR, and the minimum-payment rule your card uses, and the calculator shows your first minimum payment, how many months it takes to pay the card off, the total interest, and the total you will have paid.
| Figure | Value |
|---|---|
| First minimum payment | $100.00 |
| Months to pay off | 968 |
| Total interest | $43,419.49 |
| Total paid | $48,419.49 |
| Interest as share of total paid | 89.7% |
How it works
A credit card minimum payment is the smallest amount your issuer will accept each month without marking the account late. It is not designed to get you out of debt quickly — it is designed to keep the account current while the balance lasts as long as possible. The exact formula is written in your card agreement, and it is usually one of four types, which is why this calculator lets you pick the rule instead of guessing.
The most common rule is a percentage of the balance, usually 2% or 3%. Each month the issuer takes that percentage of the balance you owe, with a floor — often $25 — so the payment never drops below a minimum dollar amount. A second common rule is the monthly interest plus 1% of the balance: the interest part covers the month's finance charge, and the 1% part slowly chips away at what you owe. A third type is a fixed dollar payment, such as $25 every month no matter the balance. All four rules are in the selector above, and the $25 floor applies to the percentage and interest-plus-1% rules, as it does on most real cards.
The calculator works month by month, exactly the way a card balance actually moves. Each month, interest is added at the monthly rate — the APR divided by 12 — and then your payment is subtracted. With a $5,000 balance at 22% APR, the first month's interest is $5,000 × 22% ÷ 12, or $91.67. Under the 2% rule the first payment is $100, so only $8.33 of that payment reduces the balance; the other $91.67 simply covers the interest. Next month the balance is $4,991.67, the interest is a fraction lower, the minimum is a fraction lower, and the cycle repeats. That slow grind is why minimum-only payoff takes so long.
The danger case is a payment smaller than the monthly interest. A fixed $25 payment on a $5,000 balance at 22% APR covers only part of the $91.67 of interest charged in the first month, so the balance grows by $66.67 even after the payment is made — and it keeps growing every month. The debt can never be paid off that way. This calculator detects that case and tells you plainly instead of printing a payoff time that does not exist.
The extra payment field is where the real leverage lives. Any amount you pay above the minimum goes straight to the balance, because the interest for the month is already covered. Adding $50 a month to the 2% minimum on the $5,000 example cuts the payoff from 968 months to a fraction of that time and saves tens of thousands of dollars in interest. Adding $100 a month does far more still. The lesson is not that minimum payments are evil — they keep an account in good standing — but that they are a floor, not a plan. Paying even a modest fixed amount above the minimum changes the outcome out of all proportion to the extra money involved.
A few assumptions sit behind the numbers. The calculator assumes you make no new purchases, pay no annual fee or late fees, and that the APR never changes. Real cards can change rates, charge fees, and add new purchases to the balance, all of which stretch the payoff out. It also assumes payments are made on time every month. Missing a payment usually triggers a late fee and can trigger a penalty APR, which makes the math worse in a hurry. Treat the result as a clear picture of the shape of minimum-only payoff, not as a promise of the exact month your card will hit zero.
Worked example
A cardholder owes $5,000 at 22% APR, and the card's minimum is 2% of the balance with a $25 floor.
Step 1: The monthly interest rate is 22% ÷ 12 = 1.8333% per month.
Step 2: The first month's interest is $5,000 × 0.018333 = $91.67.
Step 3: The first minimum payment is 2% of $5,000 = $100.00, which is above the $25 floor, so the payment is $100.00.
Step 4: After the first payment the balance is $5,000 + $91.67 − $100.00 = $4,991.67 — only $8.33 lower.
Step 5: Repeating month by month, the payment shrinks with the balance and the balance falls very slowly.
The result: the first payment is $100.00, and paying only the minimum takes 968 months — about 80 years and 8 months — with total interest of $43,419.49 and a total paid of $48,419.49. Nearly 90% of everything paid goes to interest. By contrast, the same card under the 3% rule pays off in 205 months with $7,013.96 of interest, and under the interest-plus-1% rule in 230 months with $8,099.77 of interest. The rule matters, but every minimum-only path is expensive — which is exactly why the extra payment field is there.
FAQ
How is a credit card minimum payment calculated?
Most issuers use one of a few formulas: a percentage of the balance (commonly 2% or 3%), the monthly interest plus 1% of the balance, or a fixed dollar amount. Many also apply a floor, often $25, so the payment never falls below that. This calculator lets you pick the rule your card uses.
Why does paying only the minimum take so long?
Because the minimum shrinks as the balance shrinks. A 2% minimum on a $5,000 balance at 22% APR starts at $100, but most of that payment goes to interest, so the balance falls very slowly — and the next minimum is smaller still. That is why minimum-only payoff can take decades.
How much can I save by paying more than the minimum?
A lot. Adding even a fixed extra amount each month shortens the payoff sharply, because every extra dollar goes straight to the balance instead of interest. Try the extra payment field in this calculator: on a $5,000 balance at 22% APR, adding $50 a month to the 2% minimum cuts years off the payoff and thousands off the interest.
What happens if the minimum payment is less than the monthly interest?
The balance grows instead of shrinking, because the payment does not cover the interest charged that month. A fixed $25 payment on a $5,000 balance at 22% APR, for example, is less than the $91.67 of interest charged in the first month, so the debt would never be paid off. This calculator flags that case.