Credit Card Interest Calculator
Card Interest Estimate
Credit card interest is often based on daily periodic rate and average daily balance.
Formula: interest = balance x APR / 365 x billing days.
Understanding Credit Card Interest
1. What This Calculator Measures
Credit card interest estimates the finance charge for a billing cycle.
2. How the Calculation Works
The calculator converts APR to a daily rate and multiplies by average daily balance and billing-cycle days.
3. Formula or Rule Used
interest = balance x APR / 365 x days.
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