The average ABV of a beer in the U.S. (like Coors Banquet, an American-style lager) is about 5%. A full-sized keg, also known as a half-barrel keg, holds 1,984 ounces of beer, or 15.5 gallons ...

“This type of keg contains 15.5 gallons, which is equivalent to 1,984 fluid ounces. If you figure a 12-ounce portion—a typical can or bottle of American beer—you get around 165 beers per ...