Credit Card Minimum Payment Calculator

Credit card planning tool

Credit Card Minimum Payment Calculator

Estimate the minimum due under a common card formula, then see an approximate payoff timeline if the minimum is recalculated every month. Your card agreement and statement control the actual amount.



The balance shown on the statement, before your next payment.


Used to estimate one month of interest as APR ÷ 12.


Choose the rule closest to the disclosures on your statement.


A common example is 1% of principal plus interest.


The fixed minimum, unless the full balance is smaller.


Only fees your formula adds to the minimum.


Included in this estimated payment, capped at the balance.


Added to the recalculated minimum for the payoff estimate.


How this minimum credit card payment calculator works

Credit card issuers do not all use one universal minimum-payment rule. This calculator therefore supports two common structures and keeps the adjustable parts visible. Use the formula in your cardholder agreement or statement rather than assuming the defaults match your account.

Percentage method: minimum = min(statement balance, max(dollar floor, statement balance × balance percentage) + required fees + past-due amount).

Interest-plus-principal method: estimated interest = statement balance × APR ÷ 12; minimum = min(statement balance, max(dollar floor, estimated interest + statement balance × principal percentage) + required fees + past-due amount).

For the payoff projection, the calculator applies the first payment to the statement balance. Each later month it estimates interest at APR ÷ 12, recalculates the selected minimum, adds any optional extra payment and caps the final payment at the amount owed. It assumes no new purchases, cash advances, balance transfers, penalties or rate changes.

Checked example

Suppose a card has a $5,000 statement balance, a 24% APR, a 1% principal component, a $35 floor, and no added fees or past-due amount.

  1. Estimated monthly interest: $5,000 × 24% ÷ 12 = $100.
  2. Principal component: $5,000 × 1% = $50.
  3. Formula amount: $100 + $50 = $150.
  4. The larger of $35 and $150 is $150, so the estimated minimum is $150.

After that $150 payment, the working balance is $4,850. With the same assumptions and no new charges, the next estimated interest is $4,850 × 24% ÷ 12 = $97 and the next minimum is about $145.50. The calculator repeats this process month by month.

Why the actual statement minimum may differ

An issuer may use average daily balance rather than the statement balance to calculate interest. It may also treat promotional balances, cash advances, installment plans, fees, over-limit amounts and past-due amounts differently. Some agreements round the result or impose a different floor. The result here is an educational estimate, not the amount contractually due.

Always pay the amount shown on your statement by the due date. Paying only an estimate could cause a late payment. If the minimum is unaffordable, contact the issuer promptly; the calculator does not determine hardship eligibility or provide financial advice.

How to use the estimate

  • Copy the statement balance and APR carefully, then choose the formula named in the card disclosure.
  • Add only fees or past-due amounts that the issuer explicitly includes in the minimum rule.
  • Use the extra-payment field to see how a consistent amount above the minimum may shorten payoff.
  • Compare the projection with the minimum-payment warning on the statement, which may use more detailed account data.

Limits and edge cases

A zero balance returns a zero payment. Negative values, missing required values, percentages above 100%, and values beyond the field limits are rejected. If the selected formula plus extra payment does not reduce the balance after interest, the tool reports that the debt does not amortize under those assumptions. Projections stop at 1,200 months (100 years), and cent-level rounding means the final payment may differ slightly from an issuer schedule.

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