BAC

Blood Alcohol Level/Content (BAL/BAC) is the amount of alcohol present in your blood as you drink. It's calculated by determining how many milligrams of alcohol are present in 100 milliliters of blood. But you Don't need a Breathalyzer, a calculator, or a measurement conversion chart to figure out what BAL you had last night. Use the Table of Blood Alcohol Levels below. This is a generalized chart based on a person who is metabolizing (or breaking down) one drink an hour. For example if you are a 120 lb. female drinking seven drinks in one hour, your BAL is a .30%.

If You're a WOMAN, your Blood Alcohol Level (BAL/BAC) is:

Weight
# of drinks in one hour	100 lbs.	120 lbs.	140 lbs.	160 lbs.	180 lbs.	200 lbs.	220 lbs.	240 lbs.
1	.05	.04	.04	.03	.03	.03	.02	.02
2	.10	.08	.07	.06	.06	.05	.05	.04
3	.15	.13	.11	.10	.08	.08	.07	.06
4	.20	.17	.15	.13	.11	.10	.09	.09
5	.25	.21	.18	.16	.14	.13	.12	.11
6	.30	.26	.22	.19	.17	.15	.14	.13
7	.36	.30	.26	.22	.20	.18	.16	.15
8	.41	.33	.29	.26	.23	.20	.19	.17
9	.46	.38	.33	.29	.26	.23	.21	.19
10	.51	.42	.36	.32	.28	.25	.23	.21
11	.56	.46	.40	.35	.31	.27	.25	.23
12	.61	.50	.43	.37	.33	.30	.28	.25
13	.66	.55	.47	.40	.36	.32	.30	.27
14	.71	.59	.51	.43	.39	.35	.32	.29
15	.76	.63	.55	.46	.42	.37	.35	.32

If You're a MAN, your Blood Alcohol Level (BAL/BAC) is:

Weight

# of drinks in one hour	100 lbs.	120 lbs.	140 lbs.	160 lbs.	180 lbs.	200 lbs.	220 lbs.	240 lbs.
1	.04	.04	.03	.03	.02	.02	.02	.02
2	.09	.07	.06	.05	.05	.04	.04	.043
3	.13	.11	.09	.08	.07	.07	.06	.05
4	.17	.15	.13	.11	.10	.09	.08	.07
5	.22	.18	.16	.14	.12	.11	.10	.09
6	.26	.22	.19	.16	.15	.13	.12	.11
7	.30	.25	.22	.19	.17	.15	.14	.13
8	.35	.29	.25	.22	.19	.17	.16	.14
9	.37	.32	.26	.24	.20	.19	.17	.15
10	.39	.35	.28	.25	.22	.20	.18	.16
11	.48	.40	.34	.30	.26	.24	.22	.20
12	.53	.43	.37	.32	.29	.26	.24	.21
13	.57	.47	.40	.35	.31	.29	.26	.23
14	.62	.50	.43	.37	.34	.31	.28	.25
15	.66	.54	.47	.40	.36	.34	.30	.27

REMEMBER: While this chart is a good general guideline, every individual reacts differently to alcohol.