Privacy

The calculators run entirely in your browser. The numbers you enter are not sent to us or stored by us. They are added to the page address only so that you can share a result as a link; anyone you send the link to can see those numbers.

The site uses no cookies and no analytics. Fonts are loaded from Google Fonts, which receives your IP address as part of serving them. The site is hosted on Cloudflare, which processes standard request data to deliver pages.