Question: if i drink 12 beers when can i drive?
Answer: This would be 12 beers in 4 hours. If you weigh 170 lbs and you drink 12 beers, your BAC will be around 0.265. That's high enough to make you pass out, and be potentially life threatening. Of course we have to subtract 4 hours of your body excreting and metabolizing the alcohol.