Free financial calculator guide
Credit Card Interest Calculator and Payment Planning
Understand how credit card balances, APR and monthly payments affect interest and repayment.
Use the free Credit Card Interest Calculator
Open the working calculator on the MoneyWise Tools homepage. It does not require a Premium subscription.
Open Credit Card Interest Calculator →Why this calculation matters
Credit card interest can add up quickly when you carry a balance. A payment above the minimum can shorten repayment and reduce total interest.
How to use the calculator
Enter your card balance, annual percentage rate and intended payment to explore the cost of carrying debt.
What to keep in mind
APR is an annualized rate; actual card interest is generally calculated using daily balances. Estimates may differ from a card issuer’s statement.
The interactive calculator is on our main calculator page. Use the button above to jump directly to it; the guide here explains the inputs and how to interpret your estimate.
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Educational estimates only; not personalized financial, tax or investment advice. Read our disclaimer.