Convert barrel (petroleum) to firkin (beer 1803-1824)
Selected category: volume.
Definition and details for barrel (petroleum):
Petroleum barrel (bbl or bo from "barrel of oil") is defined to be 42 U.S. gallons or about 158.987 liters. This unit is equal to the traditional tierce, an old English wine barrel.
Definition and details for firkin (beer 1803-1824):
Firkin in 1803 was defined as 9 ale gallons or 41.59 liters.