Driving Under the Influence (DUI/DWI)

Estimated BAC Information

You are intoxicated in Texas if your BAC is 0.08 or greater

There are many factors that affect your Blood Alcohol concentration (BAC) when you drink. Some of these include: a person’s size, gender and physical condition; what they have had to eat; how much sleep they have had; what medications they are taking and, importantly, the actual alcohol content of their chosen “drink.”

One drink is considered:

  • (1) 12 fl oz beer
  • (1) 5 fl oz glass of wine
  • (1) 1.5 fl oz shot of 80 proof liquor

Size and gender difference are reflected in the following estimated charts:

 

BAC Chart for Men:

Drinks Body Weight in Pounds
100 120 140 160 180 200 220 240
0 .00 .00 .00 .00 .00 .00 .00 .00
0 .00 .00 .00 .00 .00 .00 .00 .00
1 .04 .03 .03 .02 .02 .02 .02 .02
2 .08 .06 .05 .05 .04 .04 .03 .03
3 .11 .09 .08 .07 .06 .06 .05 .05
4 .15 .12 .11 .09 .08 .08 .07 .06
5 .19 .16 .13 .12 .11 .09 .09 .08
6 .23 .19 .16 .14 .13 .11 .10 .09
7 .26 .22 .19 .16 .15 .13 .12 .11
8 .30 .25 .21 .19 .17 .15 .14 .13
9 .34 .28 .24 .21 .19 .17 .15 .14
10 .38 .31 .27 .23 .21 .19 .17 .16

BAC Chart for Women:

Drinks Body Weight in Pounds
90 100 120 140 160 180 200 220 240
0 .00 .00 .00 .00 .00 .00 .00 .00 .00
0 .00 .00 .00 .00 .00 .00 .00 .00 .00
1 .05 .05 .04 .03 .03 .03 .02 .02 .02
2 .10 .09 .08 .07 .06 .05 .05 .04 .04
3 .15 .14 .11 .10 .09 .08 .07 .06 .06
4 .20 .18 .15 .13 .11 .10 .09 .08 .08
5 .25 .23 .19 .16 .14 .13 .11 .10 .09
6 .30 .27 .23 .19 .17 .15 .14 .12 .11
7 .35 .32 .27 .23 .20 .18 .16 .14 .13
8 .40 .36 .30 .26 .23 .20 .18 .17 .15
9 .45 .41 .34 .29 .26 .23 .20 .19 .17
10 .51 .45 .38 .32 .28 .25 .23 .21 .19



This information is taken from Virginia Tech Alcohol Abuse Prevention website.

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