Privacy policy
Draft: the owner's legal business name will be added here before launch.
Last updated November 11, 2026.
This site is operated by FreeConcreteCalculator.org ("we").
The calculators
Calculations run in your browser. The numbers you type are not sent to us. If you use "Copy link", your inputs are put in the page address so you can share them; only people you give the link to see them. Your light or dark mode choice is saved in your browser's local storage.
Analytics
We use Google Analytics 4 to understand which pages and calculators are used. It records page views and events such as "calculator used", "shape changed" or "link copied", with rough size bands (for example "1–3 cubic yards") instead of your exact inputs. Google signals are off. In the European Economic Area, the UK and Switzerland, analytics and ad storage are denied by default (Google Consent Mode), so Google Analytics runs without cookies there. We also use Cloudflare Web Analytics, which counts visits without cookies.
Ads
If we show ads, Google may use cookies to serve them, subject to the same consent defaults; see how Google uses data from sites that show its ads.
If you email us, we use your message only to reply and keep it as long as needed for that.
Your choices
- Block cookies or use your browser's tracking protection; the calculators still work.
- Use Google's Analytics opt-out add-on.
- Ask us about data we hold: hello@freeconcretecalculator.org.
The site is meant for adults planning building projects and is not directed at children under 13.