Privacy Policy

Your calculator entries stay on your device. Every calculator on this site runs entirely in your browser. The measurements you type are never sent to us or stored by us.

Analytics. We may use privacy-respecting analytics to understand which calculators are used and where visitors come from, in aggregate. We do not build profiles of individual visitors.

Advertising. This site may display ads served by third parties such as Google AdSense. Those providers may use cookies to serve ads based on your visits to this and other sites. You can control ad personalisation in your Google account settings and cookie choices in your browser.

Contact form. If you use the contact form, your name, email and message are processed by our form provider solely to deliver your message to us, and are used only to reply to you.

External links. Links to manufacturers and retailers take you to sites with their own privacy policies, which we do not control.

We may update this policy as the site's services change; the current version always lives on this page.