Utah Department of Public Safety

Driver License Division - Blood Alcohol Concentration

drinks

The BAC tables are based on averages and are only guides and not for legal use.

 

BLOOD ALCOHOL CONCENTRATION (BAC)
.00% Only Safe Level!
.01-.03% Impairment begins
.04-.07% Reflexes, vision, judgement, and concentration affected. Combined with fatigue, illness, stress, other drugs, or poor driving conditions increase risk of crash.
.08-.11% Illegal in Utah. Greater levels of impairment in all the above. Average risk of crash is 6 to 10 times normal.
.12-.15% Motor skills, mental functions, and vision are severely impaired
.16% + Extreme crash risk! Unconscious at .25-.35%. Death will occur at about .35-.45%

Alcohol affects everyone differently. BAC may be affected by age, gender, physical condition, amount of food consumed, medication, and other factors. Also, different mixed drinks contain different amounts of alcohol, so it's important to know how much alcohol has been consumed, not just how many drinks a person has had.

A "drink" is defined as a 12 oz.. beer or wine cooler, a 5 oz.. glass of wine, or 1.5 oz.. of 80 proof distilled spirits (straight or in a mixed drink).

WOMAN BAC BODY WEIGHT
Drinks

Alcohol
Fluid Oz..

100 lbs 120 lbs 140 lbs 160 lbs 180 lbs 200 lbs 220 lbs 240 lbs
0 0 .00% .00% .00% .00% .00% .00% .00% .00%
1 1/2 .05 .04 .03 .03 .03 .02 .02 .02
2 1 .09 .08 .06 .06 .05 .05 .04 .04
3 11/2 .14 .11 .10 .09 .08 .07 .06 .06
4 2 .18 .15 .13 .11 .10 .09 .08 .08
5 2 1/2 .23 .19 .16 .14 .13 .11 .10 .09
6 3 .27 .23 .19 .17 .15 .14 .12 .11
7 3 1/2 .32 .27 .23 .20 .18 .16 .14 .13
8 4 .30 .25 .26 .23 .20 .18 .17 .15

Subtract .01% for each 40 minutes after the first drink. 1/2 Oz.. of pure ethyl alcohol can be found in: 1 1/4 Oz.. of 80 proof liquor, 12 Oz.. of beer, or 5 Oz.. of wine.

Men BAC BODY WEIGHT
Drinks Alcohol
Fluid Oz.
100lbs 120lbs 140lbs 160lbs 180lbs 200lbs 220lbs 240lbs 260lbs
0 0 .00% .00% .00% .00% .00% .00% .00% .00% .00%
1 1/2 .04 .03 .03 .02 .02 .02 .02 .02 .01
2 1 .07 .06 .05 .05 .04 .04 .03 .03 .03
3 1 1/2 .11 .09 .08 .07 .06 .06 .05 .05 .04
4 2 .15 .12 .11 .09 .08 .07 .07 .06 .06
5 2 1/2 .19 .16 .13 .12 .10 .09 .08 .08 .07
6 3 .22 .19 .16 .14 .12 .11 .10 .09 .09
7 3 1/2 .26 .22 .19 .16 .15 .13 .12 .11 .10
8 4 .30 .25 .21 .20 .17 .15 .14 .12 .11

Subtract .01% for each 40 minutes after the first drink. 1/2 Oz.. of pure ethyl alcohol can be found in: 1 1/4 Oz.. of 80 proof liquor, 12 Oz.. of beer, or 5 Oz.. of wine.

[Last Update - Friday, 08-Mar-2013 16:25:37 MST]