BAC Charts

FACT

Estimated BAC Information

As you have read in other places in this site, there are many factors that affect your Blood Alcohol concentration (BAC) when you drink. Size, gender, physical condition, what you eat, how much sleep you have had, are you taking any medications, the actual alcohol content of your chosen "drink."

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

BAC Chart for Men

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
0	.00	.00	.00	.00	.00	.00	.00	.00	Only Safe Driving Limit
1	.04	.03	.03	.02	.02	.02	.02	.02	Driving Skills Significantly Affected Possible Criminal Penalties
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	Legally Intoxicated Criminal Penalties
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	Death Possible
Subtract .01% for each 40 minutes of drinking. One drink is 1.25 oz. of 80 proof liquor, 12 oz. of beer, or 5 oz. of table wine.

BAC Chart for Women

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
0	.00	.00	.00	.00	.00	.00	.00	.00	.00	Only Safe Driving Limit
1	.05	.05	.04	.03	.03	.03	.02	.02	.02	Driving Skills Significantly Affected Possible Criminal Penalties
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	Legally Intoxicated Criminal Penalties
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	Death Possible
Subtract .01% for each 40 minutes of drinking. One drink is 1.25 oz. of 80 proof liquor, 12 oz. of beer, or 5 oz. of table wine.

This is information is available at the Virginia Tech Alcohol Abuse Prevention website.