A 'carton' is 24 beers. This what you buy, and when you get home you put the '6 packs' in the beer fridge (which is separate from the food fridge). The beer fridge is set to 1 degree Celsius. If you go to a party, you take a carton of beer.
How to Convert Six Packs to Gallons. To convert a six pack measurement to a gallon measurement, multiply the beer volume by the conversion ratio. The beer volume in gallons is equal to the six packs multiplied by 0.5625.
Why is beer sold in 6 packs?
Mostly the beer is primarily distributed in cases of 6 or 12 in wood crates up until this time. It has also been said that beer was first sold in packs of 6 because of size, not weight. A 6 pack beer carrier contains 6 beer bottles was the perfect size to fit in a standard paper grocery bag.