Promillerechner – BAC Rechner

Want to know your blood alcohol content (BAC) and when you'll be sober again?

With the BAC Calculator – Alcohol Breakdown & Estimation, you get a simple way to calculate your estimated BAC based on the Widmark formula. The app also shows you how quickly your body breaks down alcohol – clearly visualized over time.

🔍 App Features:
Calculate your BAC using your biological sex and weight
Use the Widmark formula for realistic estimates
Graphical representation of alcohol breakdown over time
Estimate of when you'll be sober again
Local storage of your entries – no account required
Completely usable offline – no internet connection needed
Modern, clear design for easy operation
BAC calculator specifically for quick reference in everyday situations

⚠️ Disclaimer:

The displayed values ​​are mathematical estimates. These guidelines are for general orientation only and do not constitute legally binding statements about your fitness to drive.

This app does not replace medical advice or legal assessment.

Don't drink and drive.



🔐 Privacy-friendly:

No ads

No analytics or tracking tools

No data transfer – everything stays local on your device


🚀 Ideal for anyone who…
...needs a blood alcohol calculator after a night out
...wants to know when the alcohol is metabolized
...is interested in the relationship between alcohol, blood alcohol content, and fitness to drive
...is looking for a simple, offline-usable app without any unnecessary features


📌 Note:
This app is intended for users of legal drinking age.

Please consume alcohol responsibly.