Privacy policy
Last updated: September 5, 2026.
1. Your calculations never leave your device
Every measurement you enter is processed locally in your browser using JavaScript. Nothing is transmitted to us, stored on a server, or retained after you close the page.
2. What we do collect
We do not have accounts, contact forms or newsletters. The only data collected is what your browser sends to our hosting provider and to any advertising or analytics services described below.
3. Advertising and cookies
This site may display third-party advertising (Google AdSense, pending activation). Advertising partners may use cookies or similar identifiers to serve and measure ads. Visitors from regions requiring prior consent will see a consent notice before any non-essential cookie is set.
4. Your choices
You can block or delete cookies in your browser settings. US residents in states with applicable privacy laws may have rights to access, delete or opt out of the sale or sharing of personal information; contact us to exercise them.