Cookie Policy

Essential storage

We store two small preferences in your browser's local storage: your light/dark theme and your cookie-notice choice. They never leave your device.

Advertising cookies (Google AdSense)

Google and its partners may set cookies to serve and measure ads, limit repetition and, with consent where required, personalise ads. Manage personalisation at Google Ads Settings. Visitors in the EEA, UK and Switzerland are shown a consent choice before personalised advertising cookies are used.

Embedded content

YouTube videos load only when you press play; YouTube may then set its own cookies.

Your controls

You can clear or block cookies in your browser settings. Blocking advertising cookies does not stop the calculators from working.