A standard full-size keg, also known as a half barrel keg, holds about 15.5 gallons of beer. This translates to approximately 165 twelve-ounce beers or 124 pints of 16 ounces each
. Here is a breakdown of common keg sizes and how many 12-ounce beers they contain:
- Half barrel (15.5 gallons): ~165 beers
- Quarter barrel (7.75 gallons): ~82 beers
- Sixth barrel (5.16 gallons): ~54 beers
Smaller or larger kegs exist, especially in different countries. For example, in Australia, a common keg size is 50 liters (about 13.2 gallons), which holds roughly 150 330ml bottles (similar to 11.2 oz)
. In summary, if you are referring to the typical US full-size keg, expect around 165 standard 12-ounce beers per keg. Other keg sizes will have proportionally fewer beers based on their volume. Foam and dispensing losses usually reduce the practical number slightly, often estimated around 150 beers per full keg
