About OUNZOZ

OUNZOZ is a free collection of fast, single-purpose web calculators — covering health, finance, and everyday student math — built around one idea: get the answer without friction. No account to create, no app to download, no paywall between you and a number you need right now.

Every tool here runs entirely in your browser. When you calculate a BMI, a loan payment, or a GPA, the numbers you enter are used only to compute the result on your own device — nothing is sent to or stored on a server, because there's no server-side account system behind this site at all. What you see is what the site does.

OUNZOZ is built and maintained by an independent developer, not a company with a marketing department — which is also why the tools stay narrowly focused rather than trying to be a do-everything platform. New calculators get added over time, existing ones get corrected when something's wrong, and there's no roadmap beyond making useful tools and keeping them accurate.

The site is free to use and supported by advertising (Google AdSense), which covers hosting costs and lets every calculator stay free with no sign-up required. Full details on what that means for your privacy are on the Privacy Policy page.

Found something wrong with a calculator, or have a tool you wish existed? Get in touch — the Contact page has the details.