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Weight is measured in ounces and pounds (avoirdupois) as in the U.S. Volume is measured in imperial gallons, quarts, pints, fluid ounces, fluid drachms, and minims. The imperial gallon was originally defined as 10 pounds (4.5359 kg) of water in 1824, and refined as exactly 4.54609 litres in 1985.
[5] In 1824, the British Parliament defined the imperial gallon as the volume of ten pounds of water at standard temperature. [2] The gallon was divided into four quarts, the quart into two pints, the pint into four gills, and the gill into five ounces; thus, there were 160 imperial fluid ounces to the gallon.
The gallon is a unit of volume in British imperial units and United States customary units.. The imperial gallon (imp gal) is defined as 4.546 09 litres, and is or was used in the United Kingdom and its former colonies, including Ireland, Canada, Australia, New Zealand, India, South Africa, Malaysia and some Caribbean countries, while the US gallon (US gal) is defined as 231 cubic inches (3. ...
The Winchester bushel is the volume of a cylinder 18.5 in (470 mm) in diameter and 8 in (200 mm) high, which gives an irrational number, of approximately 2150.4202 cubic inches. [4] The modern American or US bushel is rounded to exactly 2150.42 cubic inches, a difference of less than one part per ten million.
The table of imperial avoirdupois mass is the same as the United States table up to one pound, but above that point, the tables differ. The imperial system has a hundredweight, defined as eight stone of 14 lb each, or 112 lb (50.802 345 44 kg), whereas a US hundredweight is 100 lb (45.359 237 kg). In both systems, 20 hundredweights make a ton.
In the US, the dry quart and dry pint are exactly 15121 / 92400 larger than their liquid counterparts, while the dry barrel is exactly 1 / 33 smaller than the fluid barrel, except for barrels of beer (dry barrels are exactly 5 / 341 smaller) and barrels of oil (dry barrels are exactly 3 / 11 smaller).
Britain's North American colonies adopted the British wine gallon, defined in 1707 as exactly 231 cubic inches (3 in × 7 in × 11 in) as their basic liquid measure, from which the US wet pint is derived, and the British corn gallon (1 ⁄ 8 of a standard "Winchester" bushel of corn, or exactly 268.8025 cubic inches) as its dry measure, from ...
The saying, "a pint's a pound the world around", refers to 16 US fluid ounces of water weighing approximately (about 4% more than) one pound avoirdupois. An imperial pint of water weighs a pound and a quarter ( 20 oz ).