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The quart (symbol: qt) [1] is a unit of volume equal to a quarter of a gallon. Three kinds of quarts are currently used: the liquid quart and dry quart of the US customary system and the imperial quart of the British imperial system. All are roughly equal to one liter. It is divided into two pints or (in the US) four cups. Historically, the ...
≡ 1 US dry qt ≡ 2 US dry pt ≡ 0.25 US dry gal ≡ 1 101.220 942 715 mL ≡ 1.101 220 942 715 L. gallons Imperial gallon (gal) ≡ 160 imp fl oz ≡ 4 imp qt ≡ 1 imp gal. ≈ 153.721 590 465 US fl oz ≈ 151.536 333 333 US fl oz (food) ≈ 1.200 949 925 50 US gal. ≈ 4.128 226 973 95 US dry qt ≈ 1.032 056 743 49 US dry gal. ≡ 4 546. ...
c. 74) declared that, for measures of liquids and unheaped dry volume, a 'quarter' equals eight bushels (64 imperial gallons (290.95 L), where a gallon is defined as a volume of water weight ten troy pounds). [12] The term pail is also used for this unit of dry volume. [13] The 1824 Act delegitimised all previous definitions.
The system can be traced back to the measuring systems of the Hindus [18]: B-9 and the ancient Egyptians, who subdivided the hekat (about 4.8 litres) into parts of 1 ⁄ 2, 1 ⁄ 4, 1 ⁄ 8, 1 ⁄ 16, 1 ⁄ 32, and 1 ⁄ 64 (1 ro, or mouthful, or about 14.5 ml), [19] and the hin similarly down to 1 ⁄ 32 (1 ro) using hieratic notation, [20] as ...
The bushel and the peck are only used for dry goods. Imperial units of volume are the same for both dry and liquid goods, and have a different value from both the dry and liquid US versions. Many of the units are associated with particular goods, so for instance the dry hogshead has been used for sugar and for tobacco, and the peck for apples.
1 imperial bushel: ≡ 8 imperial gallons ≡ 4 imperial pecks ≡ 36.36872 litres: ≈ 8.25645 US dry gallons ≈ 9.6076 US liquid gallons ≈ 2219.35546 cubic inches: ≈ 1.28435 cubic feet 1 US bushel [6] = 8 US dry gallons ≡ 4 US pecks ≡ 2150.42 cubic inches ≡ 1 21121 / 86400 cubic feet ≡ 35.23907016688 litres
On 7 April 1795, the metric system was formally defined in French law using six units. Three of these are related to volume: the stère (1 m 3) for volume of firewood; the litre (1 dm 3) for volumes of liquid; and the gramme, for mass—defined as the mass of one cubic centimetre of water at the temperature of melting ice. [10]
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 liquid gallon (US gal) is defined as 231 cubic ...