Legal
Privacy policy
The short version: the numbers you type into the calculator never leave your device, and we collect as little else as we can get away with.
Last updated 10 August 2026
Calculator data
Your age, height, weight, sex, activity level and body fat percentage are processed entirely in your browser by JavaScript running on your own device. They are never transmitted to us, never written to a server, never logged, and never stored. Closing or refreshing the page discards them. We could not retrieve them if we wanted to, and we do not want to.
What we do collect
Analytics
[Name your analytics provider and describe it. If you use a privacy-first tool such as Plausible or Fathom, say that it sets no cookies, collects no personal data and does not track people across sites. If you use Google Analytics, say so plainly and link to Google's privacy policy, and note that consent is requested first where the law requires it.]
Server logs
Our hosting provider records standard request logs: IP address, timestamp, page requested, referring page and user agent. These are used for security and troubleshooting and are retained for [number] days.
If you email us, we keep the message and your address for as long as needed to deal with it, and to keep a record if it was a correction. We do not add you to a mailing list.
Cookies
[List every cookie the site sets, its purpose and its lifetime. If the site sets none, say so.] Advertising partners, where present, may set their own cookies; these are listed here and covered by the consent banner where the law requires one.
Legal basis and your rights
Where the GDPR applies, our legal basis is legitimate interest for security logging and consent for analytics and advertising cookies. You have the right to access, correct, erase, restrict or object to processing of your personal data, and the right to data portability. Under the CCPA and CPRA, California residents have comparable rights, including the right to know and the right to delete. We do not sell personal information.
To exercise any of these, email privacy@tdeenet.com. We respond within 30 days. You also have the right to complain to your national data protection authority.
Children
This site is not directed at children and the calculator does not produce results for anyone under 18. We do not knowingly collect personal data from children. If you believe a child has provided us with personal data, contact us and we will delete it.
Third parties
The site loads fonts from Google Fonts, which means your browser makes a request to Google's servers and Google receives your IP address. [If you self-host the fonts instead, replace this paragraph.] Outbound links to PubMed and other sites are governed by those sites' own policies.
Changes
Material changes to this policy will be posted here with a new date at the top of the page. The current version took effect on 10 August 2026.
Who we are
TDEENet is operated by [legal entity name], [registered address], [country]. Data controller contact: privacy@tdeenet.com.