Alcohol Impairment Chart
This chart is intended as a guide, NOT a guarantee!
Alcohol affects individuals
differently. Your blood alcohol level may be affected by your age, gender,
physical condition, amount of food consumed and
any drugs or medication. In addition, different drinks may contain different
amounts of alcohol, so it's important to know how much and the concentration of
alcohol you consume.
For purposes of this guide, "one drink" is equal to 1.5 oz. of 80 proof liquor,
12 oz. of regular beer, or 5 oz. of table wine.
A woman drinking an equal amount of alcohol in the same period of time as a
man of an equivalent weight may have a higher blood alcohol level than that man.
Therefore, women should refer to the female chart.
Some states have set .08% Blood Alcohol Concentration (BAC) as the legal
limit for Driving Under the Influence. For commercial drivers, a BAC of .04% can
result in a DUI conviction nationwide.
Impairment begins with your first drink! For
safety's sake, never drive after drinking!
Men |
|
Approximate Blood Alcohol Percentage |
Drinks |
Body Weight in Pounds |
|
|
100 |
120 |
140 |
160 |
180 |
200 |
220 |
240 |
|
0 |
.00 |
.00 |
.00 |
.00 |
.00 |
.00 |
.00 |
.00 |
Only Safe Driving Limit |
1 |
.04 |
.03 |
.03 |
.02 |
.02 |
.02 |
.02 |
.02 |
Impairment Begins |
2 |
.08 |
.06 |
.05 |
.05 |
.04 |
.04 |
.03 |
.03 |
Driving Skills Affected
-
Possible Criminal Penalties |
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 |
Legally Intoxicated |
8 |
.30 |
.25 |
.21 |
.19 |
.17 |
.15 |
.14 |
.13 |
9 |
.34 |
.28 |
.24 |
.21 |
.19 |
.17 |
.15 |
.14 |
Criminal Penalties |
10 |
.38 |
.31 |
.27 |
.23 |
.21 |
.19 |
.17 |
.16 |
Your body can get rid of one drink
per hour. One drink is 1.5 oz. of 80 proof liquor, 12 oz. of beer, or 5
oz. of table wine.
|
Women |
|
Approximate Blood Alcohol Percentage |
Drinks |
Body Weight in Pounds |
|
|
90 |
100 |
120 |
140 |
160 |
180 |
200 |
220 |
240 |
|
0 |
.00 |
.00 |
.00 |
.00 |
.00 |
.00 |
.00 |
.00 |
.00 |
Only Safe Driving Limit |
1 |
.05 |
.05 |
.04 |
.03 |
.03 |
.03 |
.02 |
.02 |
.02 |
Impairment Begins |
2 |
.10 |
.09 |
.08 |
.07 |
.06 |
.05 |
.05 |
.04 |
.04 |
Driving Skills Affected
-
Possible Criminal Penalties |
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 |
Legally Intoxicated |
8 |
.40 |
.36 |
.30 |
.26 |
.23 |
.20 |
.18 |
.17 |
.15 |
9 |
.45 |
.41 |
.34 |
.29 |
.26 |
.23 |
.20 |
.19 |
.17 |
Criminal Penalties |
10 |
.51 |
.45 |
.38 |
.32 |
.28 |
.25 |
.23 |
.21 |
.19 |
Your body can get rid of one drink
per hour. One drink is 1.5 oz. of 80 proof liquor, 12 oz. of beer, or 5
oz. of table wine.
|
Data supplied by the
Pennsylvania Liquor Control Board.
Source: National Clearinghouse for Alcohol and Drug
Information (http://ncadi.samhsa.gov/)
Last Editorial Review: 8/29/2005