Blood alcohol is measured in grams per liter of blood, where 1 gram per liter corresponds to a BAC of .01. A BAC of .91 means that you would have 91 grams of alcohol present per liter of blood you contain. This table details it all, if you want to be an anal bastard and check my figures.

So, either way, how much blood is in the human body? Well, if you’re in a slasher flick, it’s like 18 gallons, but in reality, it’s more like 5 liters. Using our last number, we get:

91 grams/liter x 5 liters = 455 grams

So, effectively, this inebriated gent had a measured level of pure alcohol consistent with consuming roughly 450 grams of 200 proof booze. The next obvious question is how much actual liquor is that?

Well, the short answer is a lot. Seriously, though, to figure that out we need a conversion from grams to milliliters. According to this chart, there are about 785 kilograms of alcohol per cubic meter, which is also conveniently 785 grams per liter. So effectively, if you were drinking pure alcohol, 455 grams is equivalent to .57 liters of the stuff.

Let’s assume this gentleman was drinking the strongest liquor commonly available, Bacardi 151 (also chosen for the easy math). Now, Bacardi is 151 proof, which in only arcane proof-math, is actually about 75% pure alcohol. So, effectively to drink .57 liters of alcohol, you have to consume about .76 liters of Bacardi.

How much of a bottle of Bacardi is that? Most liquor is sold by the milliliter, with the most common bottle size being 750 milliliters. Conveniently, 750 milliliters almost exactly equals .76 liters. So, the short answer is that this is THE ENTIRE BOTTLE. You sir, I salute you. I can’t drink more than two shots of that stuff without falling out of my seat, and you downed the entire bottle (not to mention the alcohol that was metabolized before the test was administered). I would think this is an experiment not to try at home (especially considering the LD50 of alcohol is about .40 BAC in humans).