Privacy Policy
What this site does and does not collect.
The short version
This is a static reference site. There are no accounts, no logins and no forms that ask for personal information. Everything you type into a calculator here is processed in your own browser and is never transmitted to us.
Local storage
We keep a few small preferences on your own device so the site behaves sensibly next time: your light/dark choice, whether you read in kilograms or pounds, and — if you enter them — your bodyweight and lifts, which power the profile bar. These never leave your browser. Clear them with the "clear" button on that bar, or through your browser settings.
Analytics
We use privacy-respecting aggregate traffic measurement to understand which pages are useful. We do not build advertising profiles from it and we do not sell data.
Advertising
This site is funded by Google AdSense. Google and its partners may use cookies or device identifiers to serve and measure advertising, including personalised advertising where you have given consent. You can manage your choices at myadcenter.google.com, and read how Google uses information from sites that use its services at policies.google.com/technologies/partner-sites. Visitors in the EEA, UK and Switzerland are shown a consent message before personalised advertising cookies are set.
Third parties
Fonts are served by Google Fonts and pages are hosted by Vercel; both receive your IP address as a necessary part of delivering the page, as any web host does.
Children
This is a general-audience reference site and is not directed at children under 13.
Contact
Questions about this policy: get in touch.
Last updated: 2026-08-09