Now available for Apple Watch.

Live blood alcohol content calculator is so easy to use that you actually want to use it. When you start a drink open the app and choose it. When you finish a drink open the app again and choose the current drink again - that's it!

Calculates blood alcohol based on you gender, age, height, weight and time frame.

Easy setup: migrate your birthday, height, gender and weight from the Health-App if you like.

As seen on "The Today Show".

Not sure if this is what you are looking for? Try the lite version first:

We do not endorse drink driving or the excessive consumption of alcohol. Blood alcohol calculation in this app is based on the Widmark formula and should be used as a guide only.

The app should not be used to determine wether a person is able to drive or not.

What's New

Version 2.2

Added the ability to share your BAC chart.

Fixed a rare problem that could cause the sober time to be negative.

Sharing of your status includes a screenshot. (instead of the app logo)

Rewritten the Apple Watch app. It's now a native app than is a lot faster.

You can now start drinks on your Apple Watch. (but only drinks that are marked with a star)

Customer Reviews

I don't feel dead...


I'm 50, 5' 10" and 190. After 3 beers and 3 hours it had my blood alcohol at .54%. I think someone misplaced a decimal point because this seems to be off by a factor of 10. Apart from that this is an easy and fun calculator. Please fix this bug.

Promising App!


This app has the potential to be a good reference app. However, in order for it to be of any use to US customers the developer needs to use standard imperial units - not metrics.


digitalsirup GmbH
11.3 MB
Food & Drink
Requires iOS 8.4 or later. Compatible with iPhone, iPad, and iPod touch.
English, German
Age Rating
Rated 12+ for the following:
Infrequent/Mild Medical/Treatment Information
Infrequent/Mild Alcohol, Tobacco, or Drug Use or References
© 2015 digitalsirup GmbH


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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