Data we collect
The pages of this site are static files. They do not set cookies, load third-party trackers, advertising scripts or embedded media, and they do not ask for personal data. Calculators run entirely in your browser; the values you type are not sent anywhere.
Server logs
Like any web server, the hosting service may keep technical logs (IP address, time, requested page) for security and reliability. We do not use these logs to identify visitors.
If you email us
If you write to us, we use your message and address only to reply and to improve the site. We do not sell or share them.
Changes
If this policy changes, the update will appear on this page with a new date. Last updated 2026-11-06.