Various units of capacity, some dry, some liquid, some both. From Old Northern French, possibly entering England with the Normans.
Because of the quantity of information, the various gallons are given their own pages:
English ale gallon
English wine gallon
imperial gallon (British Empire after 1826)
United States gallon
United States dry gallon
wine gallon (in Barbados and Gibraltar, after 1826)
Copyright © 2009-2011 Sizes, Inc. All rights reserved.
Last revised: 3 April 2011.