Legal
Cookie Policy
Last updated: October 15, 2026
Cookies are small files a website stores in your browser. Here is what we use.
Necessary (always on)
- wp-consent-v1 — remembers your cookie choice.
- Unit preference, saved projects, Pro flag — local storage so the calculators remember your settings.
Analytics (consent required in EEA/UK/CH)
- _ga, _ga_* — Google Analytics 4, distinguishes visitors; kept up to 2 years.
Advertising (consent required in EEA/UK/CH)
- Google advertising cookies (such as __gads, __gpi, IDE) for ad measurement and personalisation, if ads are shown.
Third-party sites
Amazon sets its own cookies after you click an affiliate link to its site.
Change or withdraw consent
You can change your choice at any time; withdrawing is as easy as giving consent.