Privacy policy
Last updated 2026-11-10.
Calculators
Every calculation runs in your browser. The numbers you type are not sent to us or stored anywhere.
Cookies and analytics
The site sets no cookies and runs no advertising or tracking scripts. If that changes, this page will be updated first and you will be asked for consent where the law requires it.
Hosting
The site is served by Cloudflare. Like any web host, Cloudflare processes technical request data (IP address, browser type, requested page) to deliver pages and stop abuse. See Cloudflare's privacy policy for details.
If you write to us, we keep the message only as long as needed to answer and fix the issue you report.