You should confirm these terms each time when you start mobileBAC.Don't like it - don't use it!

Blood/Breath Alcohol Concentration (BAC) is the amount of alcohol in the bloodstream or on one's breath.

Use the mobileBAC calculator only to instantly compute your estimated blood/breath alcohol concentration. Keep in mind the results generated are estimates only! No warranty or liability of any kind!

Most states defines legal intoxication for purposes of driving as having a BAC of 0.08 or greater, in most cases. But alcohol may affect driving skills at BACs of 0.05 or even lower. And often there are other regulations for young drivers or drivers with restricted privileges!

Driving skills, especially judgment, are impaired in most people long before they show signs of drunkenness. The public usually associates BAC with "drunk driving." But it's more accurate to refer to "alcohol-impaired" driving because you do not have to be "drunk" to be impaired in your ability to safety drive a car.