"What's my credit card minimum monthly payment?" is not a question with a simple answer. Typically, your minimum monthly payment is either: 1) a fixed dollar amount, or, 2) a small percentage of your balance. Expect to pay the greater amount of the two. However, most credit card companies use different calculations to determine what they charge for a minimum payment. Input information below to determine how to calculate credit card payments and compare different scenarios for various credit cards.