The calculator runs entirely in your browser. We never send the answers you enter to our servers or to anyone else, and there is no account or login.
Shared links
If you use “Copy a link to this result,” your answers are stored inside the link after the # sign. Browsers do not send that part of a link to any server, but anyone you give the link to can see the answers.
Site statistics
We may use privacy-friendly, cookieless analytics that count page views without identifying individuals. They never receive what you type into the calculator.
Advertising
The site does not show advertising at present. If it does in the future, this page will say who supplies the ads and what they can see. We never send calculator answers to advertisers or anyone else.