Convert polypin (metric) to firkin (U.K. beer)
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 firkin (U.K. beer):
Firkin is a traditional unit of liquid volume equal to 1/4 barrel. U.K. beer firkin (after 1824) is equal to 9 imperial gallons or about 40.91 liters.