This site is built to be privacy-preserving. It does not require an account and does not sell personal data.
Standard server logs may record requests for security and reliability. If analytics are enabled by the operator, they are configured to minimise personal data.
We may use privacy-friendly, first-party analytics to count visits and measure time on site. This uses a random identifier stored in your browser’s local storage — it does not use cookies and does not collect your IP address or any personal data.
No non-essential tracking cookies are set by the core site.
There is no account system, so there is nothing to sign up for and no password to lose. We do not ask for your name, email address, age, weight or any health information. What you type into a calculator is processed in your browser and is never sent to us or stored anywhere.
The sharing link a calculator produces encodes your numbers in the address itself. That link is made in your browser; we never see it. Anyone you send it to can read those numbers, so treat it the way you would treat any other link you paste into a message.
The site may keep small preferences in your browser’s local storage — a chosen language or unit, and a random identifier used only to avoid counting the same visit twice. Clearing your browser data removes all of it, and the site works normally without it.
Pages may link to external sites and may show a labelled advertisement. Following such a link takes you to a service with its own privacy policy, which we do not control. We do not share data with advertisers because we do not hold any data to share.
If a privacy question is not answered here, ask through the About page. This policy may change; the current version is always the one on this page.
