The table provides the Approximate Blood Alcohol Percentage Level Chart for Men and Women

First table is for Men

There are nine columns from left to right

Headings read:

Drinks (in number)
Body Weight in Pounds for 100
120
140
160
180
200
220
240

Rows for those columns read accordingly:

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

0 .38 .31 .27 .23 .21 .19 .17 .16

Sample Behavioral Effects estimated for row 0 as Only Completely Safe Limit
for row 1 as Impairment Begins
for rows from 2 to 4 as Driving Skills Significantly Affected; Information Processing Altered
for rows from 5 to 10 Legally Intoxicated; Criminal Penalties; Reaction Time Slowed; Loss of Balance; Impaired Movement; Slurred Speech

Second table is for Women

There are ten columns from left to right

Headings read:

Drinks (in number)
Body Weight in Pounds for 90
100
120
140
160
180
200
220
240

Rows for those columns read accordingly:

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

Sample Behavioral Effects estimated for row 0 as Only Completely Safe Limit
for rows from 1 to 5 as Driving Skills Significantly Affected; Information Processing Altered
for rows from 6 to 10 Legally Intoxicated ;Criminal Penalties; Reaction Time Slowed; Loss of Balance; Impaired Movement; Slurred Speech

One drink is 1.5 oz. shot of hard liquor, 12 oz. of beer, or 5 oz. of table wine.

Subtract .015 for each hour that you take to consume the number of drinks listed in the table. For example, if you are a 160 pound woman, and have two drinks in two hours, your BAC woud be .06 - (2 x .015) = .03

NOTE: Blood Alcohol Level (BAL) charts do not take into consideration a wide range of additional variables that contribute to the determination of BAL's achieved and the behavioral effects experienced at a given BAL. These additional variables include: age, water to body mass ratio, ethanol metabolism, tolerance level, drugs or medications taken, amount and type of food in the stomach during consumption, speed of consumption, and general physical condition. Thus, BAL charts only provide extremely rough estimates and should never be used alone to determine any individual's safe level of drinking.

Adapted from BAC Charts produced by the National Clearinghouse for Alcohol and Drug Information.