Credit Card Interest Calculator
Calculate how much monthly interest you are paying on your credit card balance and see the true cost of carrying debt.
Calculator Settings
Total Breakdown
All About Credit Card Interest Calculator
Credit cards are convenient but can be extremely expensive if balances are carried. This tool visualizes the monthly and daily interest costs leaking from your pocket.
How to Use This Tool
Enter your current outstanding credit card balance.
Input the Annual Percentage Rate (APR) from your latest statement.
Review the estimated interest you are paying this month.
Check the daily interest cost to understand the continuous impact of your debt.
Practical Example
A $5,000 balance at 18% APR results in approximately $75 of interest every month.
Common Questions
What happens if I only pay the minimum?
The principal will decrease very slowly, and you could end up paying back two or three times the amount you originally borrowed over several decades.
Is interest calculated daily?
Yes, most cards use an average daily balance method, meaning interest accumulates every day you carry a balance.
What is a 'Grace Period'?
The period (usually 21-25 days) where you aren't charged interest if you pay your entire statement balance in full by the due date.
How can I lower my APR?
You can call your card issuer and ask for a rate reduction, especially if you have a history of on-time payments.