Convert polypin (metric) to barrel (petroleum)
Selected category: volume.
Definition and details for polypin (metric):
Polypin is a traditional informal British unit of volume for beer and other alcoholic beverages, equal to 2 minipins, or 20 liters.
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.