About IziCalc

IziCalc provides free, fast, and privacy-respecting online calculators across finance, retirement planning, real estate, health, education, and everyday math.

Our Principles

Free forever. Every calculator on this site is completely free to use. No accounts, no subscriptions, no paywalls.

Privacy first. All calculations run entirely in your browser. We never see your inputs or results. We use cookieless analytics and don’t track individual users.

Accuracy matters. Our calculators use standard, well-documented formulas. Finance tools cite their data sources and are reviewed for accuracy. We clearly state assumptions and limitations.

Speed over flash. The site is built as static HTML with no frameworks, no bloated libraries, and inlined CSS. Pages load fast on any device.

How We’re Supported

IziCalc is supported by non-intrusive display advertising. If you use an ad blocker, no problem — everything still works.

Contact

Have feedback, found a bug, or want to suggest a calculator? Reach out at [email protected].