And what's the difference between a barrel and a keg? Whether you're planning a casual backyard party with friends or preparing for a big event, purchasing a keg of beer for guests to enjoy may be ...

A standard keg, also referred to as a half barrel, 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 ...