Privacy Policy

Last updated October 29, 2026.

What we collect

• We don't ask for accounts or collect names or emails, unless you email us.
• The calculator runs entirely in your browser. What you type is never sent to us.
• We use Google Analytics to understand which pages people read. It sets cookies and collects data such as pages viewed, approximate location, device and browser. See how Google uses data from sites that use its services. You can opt out with the Google Analytics opt-out browser add-on.
• Our host, Cloudflare, processes standard request data (such as IP address) to deliver and protect the site.

Advertising and cookies

• We use Google AdSense to show ads. Google and its partners use cookies to serve ads based on your visits to this and other websites.
• Google's use of advertising cookies lets it and its partners show you ads based on your visits to this site and other sites. See how Google uses data in advertising.
• You can turn off personalized ads in Google Ads Settings, or opt out of many third-party vendors at aboutads.info.
• Visitors in the EEA, UK and Switzerland see a cookie banner. Google Analytics and advertising cookies stay off there unless you choose Accept. You can change your choice at any time with "Cookie settings" at the bottom of every page.

Your rights

Depending on where you live (for example under GDPR or the CCPA), you can ask what data is held about you and ask for it to be deleted. Ad data is held by Google; use the links above. For anything else, email [email protected].

Children

This site is not aimed at children under 13 and we don't knowingly collect their data.