Credit Card Interest Calculator

Calculate how much interest you'll pay and discover how to save money by adjusting your payment strategy. Our free tool helps you visualize the true cost of credit card debt.

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Calculate Your Interest

Enter your credit card details to see how much interest you'll pay and how to save money.

How This Calculator Works

Our Credit Card Interest Calculator uses industry-standard formulas to accurately project your interest payments based on:

  • Your current credit card balance
  • Your card's annual percentage rate (APR)
  • Your minimum payment percentage
  • Any additional monthly payments you can make

The calculator then projects your payment schedule, showing how much you'll pay in interest and how long it will take to pay off your balance with and without extra payments.

Benefits of Using This Tool

Save Money

Discover how extra payments can save you hundreds or even thousands in interest charges.

Pay Off Faster

See how making additional payments can dramatically reduce your payoff timeline.

Financial Clarity

Gain a clear understanding of how credit card interest works and its long-term impact.

Frequently Asked Questions

How is credit card interest calculated?

Credit card interest is typically calculated using your average daily balance and daily periodic rate. Our calculator uses this industry-standard method to provide accurate projections of your interest payments.

Can I really save money with extra payments?

Absolutely! Even small additional payments can significantly reduce the interest you pay and shorten your payoff timeline. Our calculator shows exactly how much you can save by making extra payments.

What's the difference between APR and interest rate?

APR (Annual Percentage Rate) includes both the interest rate and any additional fees, giving you a complete picture of your borrowing costs. For credit cards, the interest rate and APR are typically the same.

Is this calculator accurate for my specific credit card?

While our calculator provides highly accurate estimates, your actual payments may vary slightly depending on your card issuer's specific calculation methods and billing cycle dates.

Do I need to create an account to use this tool?

No, this is a completely free tool that requires no signup or personal information. All calculations happen in your browser and your data is never stored or shared.