Privacy Policy

Last updated: 12 November 2026

Your calculations

All calculations run in your browser. The numbers you enter are not sent to our servers or stored by us.

Information we collect

If you use the contact form we receive your name, email and message so we can reply. We also use analytics tools that may collect anonymous data such as pages visited, device type and approximate location.

Cookies and advertising

We use Google AdSense to show ads. Google and its partners may use cookies to show ads based on your visits to this and other websites. You can opt out of personalised ads at Google Ads Settings. We may also use Google Tag Manager and Google Analytics to understand how the site is used.

Third-party links

We may link to other websites. We are not responsible for their privacy practices.

Your choices

You can block cookies in your browser settings. To ask about your data, email [email protected].

Changes

We may update this policy and will change the date above when we do.