Privacy Policy

Measurements and technical data

The calculator runs in your browser and does not send your measurements to a server. This site does not load analytics or advertising scripts, and the calculator itself does not set cookies. This notice will be updated if those services are enabled.

Our hosting provider receives ordinary web requests, which may include an IP address and browser information, to deliver and protect the site. We do not receive the measurements you type through the calculator.

If you email us, your email provider and ours handle the address and message you choose to send. Please avoid including sensitive information that is not needed for your question.

We will update this notice if the site starts using analytics, advertising, cookies or a different way of processing information. Last reviewed: 5 November 2026.

The calculator does not intentionally set cookies or use localStorage. To preserve a result when you switch language or visit a site page, it temporarily stores measurements in this browser tab’s sessionStorage. No analytics or advertising script is active.