Privacy

Last updated: 23 September 2026

Your calculations

Numbers entered into the calculators are processed in your browser. The calculator code does not transmit those numbers to us or store them after you leave or reload the page. If you select “Copy result,” the displayed calculation is copied to your device’s clipboard.

Cookies, analytics, and advertising

Your light or dark appearance preference is saved in this browser using local storage, so it carries across pages and visits. Calculator inputs are not saved. This site includes Google AdSense advertising code; advertising is separate from the on-device calculator.

Hosting

Our hosting provider may process technical connection information, such as IP addresses and browser request details, to deliver and secure the site. Access controls supplied by the hosting platform may also use their own authentication mechanisms.

Future advertising

If advertising or analytics is added, this page will be updated to describe the services and data practices. Any required consent controls should be in place before those services begin collecting information.

External links

Other websites linked from this site have their own privacy practices. Calculator inputs are not included in our outgoing links.