bbl beer

US beer barrel

Volumeexact by definition

The US beer barrel is exactly 31 US gallons, 117.347765304 litres. It is the unit American brewing is regulated and taxed in: brewery capacity is stated in barrels per year, federal excise brackets are set at 60,000 and 2 million barrels, and a keg is half a barrel.

Watch out: This is not the oil barrel of 42 gallons, and it is not the UK beer barrel of 36 imperial gallons (163.66 L). The standard American half-barrel keg holds 15.5 US gallons, which is where the "half barrel" name on a keg comes from.

1 bbl beer 117.34777 L