Barrel

Volume

43.23 gal

This is used for crude oil or other petroleum products. The measurement originated in the early Pennsylvania oil fields. Both the 42-gallon barrels (based on the old English wine measure, the tierce) and the 40-gallon (151.4 liters) whiskey barrels were used.

British imperial liquid/dry

U.S. liquid measure

U.S. dry measure

Japanese

Cooking (U.S.)

Cooking (metric)