This site is built to know as little about you as possible.
What we collect
Nothing, directly. The calculator runs entirely in your browser. The numbers you enter (vial sizes, doses, water amounts) never leave your device; there is no server-side processing, no account, and no database.
Cookies and tracking
This site sets no cookies and runs no advertising or analytics trackers. There are no third-party scripts, no embedded social widgets, and no fingerprinting.
Hosting
The site is served by Cloudflare. Like any host, Cloudflare may process standard connection logs (IP address, user agent, requested URL) to deliver the site and defend it against abuse. That processing is governed by Cloudflare's own privacy policy.
If you email us through the address on the contact page, we see your email address and whatever you write. We use it to reply and for nothing else.
Changes
If this policy changes (for example, if privacy-respecting analytics are added later), this page will say so plainly, with a date.
Last updated: June 11, 2026.