Credit Card Interest Calculator
Credit card interest is charged daily, so your APR quietly compounds on whatever balance you leave sitting there. This calculator turns that percentage into a real dollar figure, so you can see what one more month of carrying a balance actually costs you.
Credit card interest calculator
Enter your balance, the purchase APR from your statement, and the length of your billing period. The calculator shows what carrying that balance costs you for one cycle.
Use the balance shown on your statement. Your average daily balance gives a more precise result if you have it.
Enter a balance of zero or more.
Enter it as a decimal, such as 19.99 or 22.97. Cash advances and balance transfers usually carry a different rate.
Enter an APR between 0 and 100.
Billing periods run 28 to 31 days. Use 30 if you are not sure, or count the days on your statement.
Interest charged this period
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