Breweries no longer make full or whole kegs any more. They stopped about 35
years ago because they were just too damn heavy.
A 1/2 keg is the largest available, it holds 15.5 gallons(1984 ounces) of beer.
A 1/4 keg holds 7.75 gallons(992 ounces) of beer. A beerball holds 5
gallons(640 ounces) of beer. There are some 5 gallon mini-kegs (1/6 barrels)
now available.
For an estimate to find how many glasses are in a keg,divide the ounces by 10,
if you are using 12 ounce glasses.(allowing for foam and easier math) Then
assume a few glasses less for spillage.
Stevens