Privacy policy

Last updated: November 2026.

What we collect

The numbers you type into the calculators are processed only in your browser and are never sent to us. Formulopia does not use its own cookies and has no user accounts.

Stored on your device

Your display preferences (dark mode and number of significant figures) are saved in your browser's local storage. You can delete them at any time by clearing your browser data.

Hosting

The site is served by Cloudflare, which processes technical data such as IP addresses to deliver pages and protect against attacks. We may use Cloudflare Web Analytics, which counts visits without cookies and without identifying you.

Advertising

If advertising is shown on the site, it is provided by Google. Google may use cookies to show and measure ads; in the European Economic Area this only happens after you give consent in the consent dialog. See how Google uses data from partner sites.

Contact

For any privacy request write to [email protected].