For what it is worth, I would guess most people under report their drink totals to surveys. Also, just using the following link: https://www.alcohol.org/bac-ca

For what it is worth, I would guess most people under report their drink totals to surveys. Also, just using the following link: https://www.alcohol.org/bac-calculator/ https://www.alcohol.org/bac-calculator/ BAC can range greatly depending on size and gender. For a 200 pound guy, seven beers over three hours is close in BAC to four for a 120 pound woman. Age I would guess is also a factor. Three drinks would definitely would have a much larger effect on my in my thirties versus in my early twenties.