In Texas that means .08 percent of Blood Alcohol Content (BAC) or any amount which results in loss of normal use of mental or physical facilities. .04 if driving commercial vehicles.

 

If you must drink while you are out at any event, party, social gathering, appoint a designated driver, or a friend who does not drink to do the driving.

 

You may use the chart below to predict your estimated BAC based on your body weight and amount of alcohol consumed. It is important to remember that this chart is only a guide, and not sufficiently accurate to be considered legal evidence.  The figures you calculate are averages.  Individuals may vary substantially in their personal alcohol tolerance.   Food in the stomach affects the rate of absorption.  Medications, health, and psychological condition are also influential factors.  In any case, if you've been drinking at all, be careful!

 

THE SUREST POLICY IS . . . DON'T DRIVE AFTER DRINKING
 

Subtract .015 percent for each hour of drinking.
One drink is 1 oz. of 80 proof liquor at 40%, 12 oz. of beer at 4.5 percent, or 4 oz. of wine at 12%.

 

THE SUREST POLICY IS . . . DON'T DRIVE AFTER DRINKING

Table provided by Texas Commission on Alcohol and Drug Abuse --- Texas Alcoholic Beverage Commission.

 

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Another way to determine your Blood/Breath Alcohol Content (BAC) is to use The Intoximeters Inc. "Drink Wheel." 

 

The "Drink Wheel" is a form that you can fill out. Upon completion it will compute your estimated blood/breath alcohol concentration ("BAC") based on the information that you have provided, and return that estimate to you.  It is presented as a free public service, and it's primary purpose is to provide useful information about the responsible use of alcohol.