Convert ounce (fl oz) (U.S. food labeling) to firkin (U.K. beer)
Selected category: volume.
Definition and details for ounce (fl oz) (U.S. food labeling):
US regulation 21 CFR 101.9(b)(5)(viii) defines a fluid ounce as exactly 30 millilitres for use in nutrition labeling only.
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.