Last updated: September 2026
Every calculator on this site runs entirely in your browser. The numbers you enter never leave your device. We do not require accounts, we do not ask for your email to show results, and we do not sell data.
We do not collect personal information. Standard, privacy-respecting analytics may be used in aggregate to count page views, without building individual profiles. If advertising is displayed in the future, ad partners may use cookies subject to their own policies, which you can control through your browser settings.
The site is served by a static hosting provider that may log basic technical request data (IP address, user agent) for security purposes, as is standard across the web.
If this policy changes materially, the updated date above will change and the change will be described on this page.
Questions about privacy can be sent via the contact information on our About page.