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Calculate Credit Card Interest Rate Formula

Credit Card Interest Formula:

\[ I = ADB \times \left(\frac{APR}{365}\right) \times Days \]

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1. What is Credit Card Interest?

Credit card interest is the cost of borrowing money on your credit card. It's calculated based on your average daily balance, annual percentage rate (APR), and the number of days in your billing cycle.

2. How Does the Calculator Work?

The calculator uses the credit card interest formula:

\[ I = ADB \times \left(\frac{APR}{365}\right) \times Days \]

Where:

Explanation: The formula calculates daily interest by converting APR to a daily rate, then multiplies by the average balance and number of days.

3. Importance of Understanding Credit Card Interest

Details: Knowing how interest is calculated helps consumers make informed decisions about credit card use, payments, and debt management.

4. Using the Calculator

Tips: Enter your average daily balance (sum of daily balances divided by days in cycle), your APR (found on statements), and number of days in billing cycle (typically 28-31).

5. Frequently Asked Questions (FAQ)

Q1: How can I reduce my credit card interest?
A: Pay your balance in full each month, make payments early in the cycle, or negotiate a lower APR with your issuer.

Q2: Is APR the same as interest rate?
A: APR includes both interest rate and fees, giving a more complete picture of borrowing costs.

Q3: What's a good APR for a credit card?
A: Rates vary, but generally below 15% is good for non-promotional rates. Many cards offer 0% introductory APRs.

Q4: How is average daily balance calculated?
A: Sum your balance for each day of the billing cycle, then divide by the number of days in the cycle.

Q5: Does making multiple payments reduce interest?
A: Yes, if payments reduce your average daily balance during the billing cycle.

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