How Many Beers Does A Standard Keg Hold?

A standard keg is 15.5 gallons, which amounts to 165 12-ounce cans or bottles of beer. When accounting for the foam, the actual amount might be about a dozen or so less beers.

Even though they're half a barrel, kegs are commonly referred to as a "full keg" since they are the largest standard keg size. They are most commonly used in restaurants and bars.

With one standard keg, a party of 55 adults means about three 12-ounce beers per person. These half barrels are about 160 pounds when full.

Smaller sizes include a quarter barrel (7.75 gallons or 82 bottles of beer), sixth barrel (5.16 gallons or 55 bottles of beer), and a mini keg (1.32 gallons or 14 bottles of beer).