What is BAC?
BAC refers to the percent of alcohol in a person’s blood stream. A BAC of .10 percent means that an individual’s blood supply contains one part alcohol for every 1,000 parts blood.
In California, a person is legally intoxicated if he/she has a BAC of .08 percent or above.
Factors that determine BAC
- Number of standard drinks (see below)
- Amount of time in which drinks are consumed
- Body weight
- Food (to a much lesser extent)
One standard drink = 1/2 ounce of ethyl alcohol
- One 12 oz. regular beer (4.5 percent alcohol) = .54 oz.
- One 7 oz. malt liquor (7 percent alcohol) = .49 oz.
- One 4.5 oz. glass of wine (12 percent alcohol) = .54 oz.
- One jigger (1.25 oz.) of 80-proof liquor (40 percent alcohol) = .50 oz.
- One-third jigger (.5 oz.) of Everclear (95 percent alcohol) = .48 oz.
More than one standard drink > 1/2 ounce
- One 16 oz. cup of beer = .72 oz. = 1.4 drinks
- One 40 oz. beer = 1.8 oz. = 3.6 drinks
- One 22 oz. malt liquor = 1.5 oz. = 3 drinks
- One 12 oz. glass of wine = 1.4 oz. = 2.9 drinks
- One 12 oz. margarita = 2-4 drinks, depending on ingredients
- One 12 oz. cup of trashcan punch = 4-10 drinks, depending on ingredients
Estimated and Approximate BAC for Men*
Estimated and Approximate BAC for Women*
CALIFORNIA COURTS WE SERVE
Alhambra, Banning, Bellflower, Blythe, Burbank, Compton, Downey, East Los Angeles, El Monte, Fullerton, Glendale, Indio, Inglewood, Joshua Tree, Lancaster, Long Beach, Los Angeles, Murrieta, Newport Beach, Norwalk, Orange, Pasadena, Pomona, Rancho Cucamonga, Riverside, San Bernardino, San Fernando, Santa Ana, Santa Clarita, Torrance, Van Nuys, Victorville, West Covina, Westminster