Last Updated: January 2026

Privacy Policy

Your privacy is completely protected. We do not store, collect, or transmit your personal health or drinking data.

1. 100% Client-Side Processing

All blood alcohol calculations (including body weight, gender, age, height, drink volume, and time elapsed) are executed entirely in your local web browser via JavaScript. No personal physical measurements or beverage logs are ever uploaded to our servers or stored in any database.

2. Local Storage Usage

We use browser localStorage strictly to remember your interface preferences between page visits:

Active country and statutory BAC limit preference
Preferred volume unit (ml vs fl oz)
Light / Dark theme appearance preference
Active calculation session so your inputs are retained when switching tabs

You can wipe this data at any time by clicking "Clear All" in the calculator or clearing your browser cookies and site data.

3. Cookies & Analytics

We do not use invasive tracking cookies or third-party marketing beacons. If standard aggregated web analytics are used, they collect only anonymized traffic metrics (such as page views, browser type, and country of origin) without identifying individual visitors.

4. Third-Party Links

Our website may contain references or links to external statutory databases, transportation safety agencies, or academic studies. We are not responsible for the privacy practices of external websites.

5. Contact Regarding Privacy