Privacy Policy
Last reviewed: September 2026 · Compliant with the Australian Privacy Act 1988 (Cth)
1. Zero Collection of Calculator Inputs
At BAC Calculator Australia (bac-calculator-au.com), your privacy is fundamental to our service design. We firmly believe that health, weight, and lifestyle details should stay entirely in your hands.
🔒 100% Client-Side Browser Processing:
All blood alcohol concentration calculations—including your biological sex, body weight, licence status, state selection, drinks consumed, and drinking timeframe—are executed strictly within your local web browser using client-side JavaScript. No drink inputs, personal attributes, or calculation outcomes are ever sent across the network or stored in our database.2. Australian Privacy Principles (APPs)
We adhere to the Privacy Act 1988 (Cth) and the Australian Privacy Principles (APPs). Because our calculator operates without user accounts or server processing of calculation parameters, we collect the bare minimum non-identifiable technical data required to deliver a secure web application.
3. Browser Local Storage
We may use standard browser localStorage strictly for convenience features:
- Remembering your preferred light/dark display theme across sessions.
- Preventing repeated prompts after you submit anonymous feedback in our "Was this helpful?" widget.
This data never leaves your device and can be cleared at any time via your browser settings.
4. Advertising & Third-Party Cookies
To keep BAC Calculator Australia 100% free and accessible to all road users without subscription walls, we may display third-party advertisements (such as Google AdSense).
- Third-party advertising partners use cookies and web beacons to serve advertisements based on your prior browsing history.
- Google's use of advertising cookies enables it and its partners to serve relevant advertisements to users across the web.
- You can opt out of personalized interest-based advertising by visiting Google Ads Settings or through the consumer choice portal at aboutads.info.
5. Technical Server Logs & Analytics
Like standard web servers, our hosting infrastructure may record aggregate, non-personally identifiable technical logs (such as HTTP request headers, browser type, referring URL, approximate country, and timestamp) strictly to monitor server performance, mitigate malicious DDoS attacks, and optimize page load speeds.
6. External Links to State Agencies
Our pages feature reference links to Australian state road agencies (Transport for NSW, VicRoads, Queensland Department of Transport and Main Roads, etc.). We are not responsible for the privacy policies, tracking, or content practices of external government or commercial domains.
7. Contacting Us Regarding Your Privacy
If you have questions, feedback, or concerns regarding this privacy policy or our data practices, please reach out via our dedicated Contact Page or email us directly at [email protected].