Privacy policy

This site is static: there is no account system, no database, and no server that processes what you type into a calculator. The numbers you enter are calculated entirely in your browser and are never sent anywhere.

What is collected

This site itself does not set cookies, run analytics scripts, or use any tracking pixels. As with any website, the hosting provider (Cloudflare) processes standard connection information (such as IP address and request logs) as part of serving pages and preventing abuse — this is infrastructure-level logging, not something this site configures or accesses directly.

Advertising

This site uses Google AdSense to show ads. AdSense and its partners may use cookies and similar technologies (such as device identifiers) to serve ads, measure their performance, and personalize them based on your visits to this and other sites. This is Google's processing, not something this site itself collects or has access to.

If you're in the EEA, UK, or Switzerland, you'll see a consent prompt on your first visit letting you accept or reject personalized advertising — your choice is stored by Google's consent tooling, not by this site. Anyone can also review or manage ad personalization directly at myadcenter.google.com, and see how Google uses data from sites that use its services at policies.google.com/technologies/partner-sites .

Third-party links

Pages on this site may link to external resources (such as material suppliers or reference material). Those sites have their own privacy practices, which this policy does not cover.

Changes to this policy

If what this site collects changes — for example, when an analytics tool or ad network is added — this page will be updated to reflect that before the change goes live.

Contact

Questions about this policy can be sent via the Contact page.