About Free Credit Card Calculator

Free Credit Card Calculator builds free, transparent calculators for U.S. credit card holders. We started it because most calculators give you a number without showing how they got it, and most comparison sites rank cards without showing their math.

What makes us different

• Every formula is published on the calculator page, with a worked example you can check by hand.
• Nothing you type is collected. Calculations happen in your browser.
• Everything is dated. Each page shows when its formulas or facts were last reviewed.

Who we are

Aleix Viñals builds and maintains Free Credit Card Calculator. He started the site to make credit card costs easier to understand: every calculator shows its formula, and every guide is checked against official sources such as the Consumer Financial Protection Bureau and the Federal Reserve. He isn't a financial advisor. The site is meant to inform and help you run the numbers, not to give personalized advice.

How we're funded

Display advertising pays for the site, and some guides include affiliate links. Neither affects calculator results. Read our advertiser disclosure.

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