Privacy Policy

Last updated 2026-09-30

The short version

Every calculation on this site runs in your own browser. The numbers you type are never sent to a server, and there is no account and no login.

What is collected

Like most websites, this one may use cookies and similar technologies to understand how the site is used — which pages are visited and roughly where visitors come from. This is aggregate information and is not used to identify you personally.

Advertising

This site may display advertising. Third-party vendors, including Google, may use cookies to serve ads based on your prior visits to this and other websites. You can opt out of personalised advertising in your Google Ads settings, or use your browser's cookie controls.

Analytics

Aggregate analytics may be used to measure traffic. Analytics data is not linked to the values you enter into a calculator.

Contact

Questions about this policy can be sent to the address listed on the About page.