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: 2026-10-27
Advertising cookies (Google AdSense)
This site shows ads served by Google AdSense. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this site and other websites. Google's use of advertising cookies enables it and its partners to serve ads based on your visits to this and/or other sites on the Internet.
You can opt out of personalised advertising at Google Ads Settings, or opt out of some third-party vendors' cookies at www.aboutads.info. See how Google uses information from sites that use its services. Visitors in the EEA, UK and Switzerland are asked for consent through Google's certified consent message first.