Privacy policy

Last updated 2026-10-04.

What we collect

The calculators run entirely in your browser. Nothing you type into them is sent to us or stored.

Like most websites, our hosting provider keeps standard server logs, such as IP address, browser type and the pages requested, to keep the site secure and working.

Advertising and cookies

This site may show ads served by Google AdSense. Google and its partners use cookies to serve ads based on your visits to this and other websites. You can turn off personalized advertising in Google's Ads Settings, and read how Google uses data at policies.google.com/technologies/ads.

Where the law requires it, for example in the European Economic Area and the United Kingdom, you will be asked for consent before advertising cookies are used.

Analytics

We may use privacy-respecting analytics to count visits to each page. These do not identify you personally.

Contact

Questions about this policy: [email protected].