"Quarts" redirects here. For the mineral, see Quartz.
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 exact size of the quart has varied with the different values of gallons over time and in reference to different commodities.
The term comes from the Latinquartus (meaning one-quarter) via the Frenchquart. However, although the French word quart has the same root, it frequently means something entirely different. In Canadian French in particular, the quart is called pinte,[2] whilst the pint is called chopine.[2]
Since gallons of various sizes have historically been in use, the corresponding quarts have also existed with various sizes.
Definitions and equivalenciesedit
US liquid quartedit
In the United States, traditional length and volume measures have been legally standardized for commerce by the international yard and pound agreement of 1959, using the definition of 1 yard being exactly equal to 0.9144 meters. From this definition is derived the metric equivalencies for inches, feet, and miles, area measures, and measures of volume. The US liquid quart equals 57.75 cubic inches, which is exactly equal to 0.946352946 L.[3][4]
The imperial quart, which is used for both liquid and dry capacity, is equal to one quarter of an imperial gallon, or exactly 1.1365225 liters. In the United Kingdom goods may be sold by the quart if the equivalent metric measure is also given.[7]
The Winchester quart is an archaic measure,[10] roughly equal to 2 imperial quarts or 2.25 liters. The 2.5L bottles in which laboratory chemicals are supplied are sometimes referred to as Winchester quart bottles, although they contain slightly more than a traditional Winchester quart.
Reputed quartedit
The reputed quart was a measure equal to two-thirds of an imperial quart (or one-sixth of an imperial gallon), at about 0.7577liters, which is very close to one US fifth (0.757 liters).
The reputed quart was previously recognized as a standard size of wine bottle in the United Kingdom, and is only about 1% larger than the current standard wine bottle of 0.75L.[11][12]
Notesedit
^This has been the exact conversion since the redefinition of the imperial gallon in 1976 in the UK,[8] and in 1964 in Canada.
Referencesedit
^BS350:Part 1:1974 Conversion factors and tables Part 1. Basis of tables. Conversion factors. British Standards Institution. 1974. pp. 10, 86.
^ abc"Mesures Canada". from the original on 20 January 2018. Retrieved 1 October 2012.
^"Authorized tables" 23 August 2020 at the Wayback Machine, United States Code, Title 15, ch. 6, subchapter I, sec. 205, accessed 19 July 2008.
^ abcGuide for the Use of the International System of Units (SI) 3 June 2016 at the Wayback Machine—US government publication
^One US liquid gallon is defined as 231 cubic inches.
^ abThis has been the exact conversion since the 1964 redefinition of the liter and the 1959 redefinition of the inch.
^"Weights and Measures Act 1985, Section 8". Government of the United Kingdom. from the original on 18 November 2019. Retrieved 15 November 2019.
^ abText of the Units of Measurement Regulations 1995 as originally enacted or made within the United Kingdom, from legislation.gov.uk. Retrieved 3 May 2011.
^"Measurement Canada". from the original on 10 August 2017. Retrieved 1 October 2012.
^Trading Standards – Weights and Measures of the City of Winchester 22 January 2009 at the Wayback Machine
^"Reputed, adj. (b)". Oxford English Dictionary. from the original on 24 September 2015. Retrieved 24 December 2014.
^"Reputed quart". Sizes – The Online Quantinary. from the original on 26 September 2015. Retrieved 24 December 2014.
External linksedit
The dictionary definition of quart at Wiktionary
Media related to Quart at Wikimedia Commons
February 15, 2024
quart, other, uses, disambiguation, confused, with, cord, unit, redirects, here, mineral, quart, symbol, unit, volume, equal, quarter, gallon, three, kinds, quarts, currently, used, liquid, quart, quart, customary, system, imperial, quart, british, imperial, s. For other uses see Quart disambiguation Not to be confused with cord unit Quarts redirects here For the mineral see Quartz 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 exact size of the quart has varied with the different values of gallons over time and in reference to different commodities QuartUnit ofVolumeSymbolqtConversions imperial 1 imp qt in is equal to SI compatible units 1 13652 L US customary units 1 200950 US qt US customary units 69 35486 in3Conversions US 1 US qt in is equal to SI compatible units 0 9463529 L Imperial units 0 8326742 imp qt Imperial units 57 75 in3 US dry gallon 0 859367 US dry qt Contents 1 Name 2 History 3 Definitions and equivalencies 3 1 US liquid quart 3 2 US dry quart 3 3 Imperial quart 4 Winchester quart 5 Reputed quart 6 Notes 7 References 8 External linksName editThe term comes from the Latin quartus meaning one quarter via the French quart However although the French word quart has the same root it frequently means something entirely different In Canadian French in particular the quart is called pinte 2 whilst the pint is called chopine 2 History editMain article Gallon Since gallons of various sizes have historically been in use the corresponding quarts have also existed with various sizes Definitions and equivalencies editUS liquid quart edit In the United States traditional length and volume measures have been legally standardized for commerce by the international yard and pound agreement of 1959 using the definition of 1 yard being exactly equal to 0 9144 meters From this definition is derived the metric equivalencies for inches feet and miles area measures and measures of volume The US liquid quart equals 57 75 cubic inches which is exactly equal to 0 946352 946 L 3 4 1 US liquid quart 1 4 US liquid gallons 2 US liquid pints 4 US liquid cups 8 US liquid gills 32 US fluid ounces 57 75 cubic inches 5 0 946352 946 liters 4 6 33 307 imperial fluid ouncesUS dry quart edit In the United States the dry quart is equal to one quarter of a US dry gallon or exactly 1 101220 942 715 L 1 US dry quart 1 32 US bushels 1 8 US pecks 1 4 US dry gallons 2 US dry pints 67 200625 cubic inches 1 101220 942 715 liters 4 6 38 758 imperial fluid ouncesImperial quart edit The imperial quart which is used for both liquid and dry capacity is equal to one quarter of an imperial gallon or exactly 1 1365225 liters In the United Kingdom goods may be sold by the quart if the equivalent metric measure is also given 7 1 imperial quart 1 4 imperial gallons 2 imperial pints 40 imperial fluid ounces 1 1365225 liters 8 a 69 355 cubic inches 38 430 US fluid ouncesIn Canadian French by federal law the imperial quart is called pinte 9 2 Winchester quart editThe Winchester quart is an archaic measure 10 roughly equal to 2 imperial quarts or 2 25 liters The 2 5 L bottles in which laboratory chemicals are supplied are sometimes referred to as Winchester quart bottles although they contain slightly more than a traditional Winchester quart Reputed quart editThe reputed quart was a measure equal to two thirds of an imperial quart or one sixth of an imperial gallon at about 0 7577 liters which is very close to one US fifth 0 757 liters The reputed quart was previously recognized as a standard size of wine bottle in the United Kingdom and is only about 1 larger than the current standard wine bottle of 0 75 L 11 12 Notes edit This has been the exact conversion since the redefinition of the imperial gallon in 1976 in the UK 8 and in 1964 in Canada References edit BS350 Part 1 1974 Conversion factors and tables Part 1 Basis of tables Conversion factors British Standards Institution 1974 pp 10 86 a b c Mesures Canada Archived from the original on 20 January 2018 Retrieved 1 October 2012 Authorized tables Archived 23 August 2020 at the Wayback Machine United States Code Title 15 ch 6 subchapter I sec 205 accessed 19 July 2008 a b c Guide for the Use of the International System of Units SI Archived 3 June 2016 at the Wayback Machine US government publication One US liquid gallon is defined as 231 cubic inches a b This has been the exact conversion since the 1964 redefinition of the liter and the 1959 redefinition of the inch Weights and Measures Act 1985 Section 8 Government of the United Kingdom Archived from the original on 18 November 2019 Retrieved 15 November 2019 a b Text of the Units of Measurement Regulations 1995 as originally enacted or made within the United Kingdom from legislation gov uk Retrieved 3 May 2011 Measurement Canada Archived from the original on 10 August 2017 Retrieved 1 October 2012 Trading Standards Weights and Measures of the City of Winchester Archived 22 January 2009 at the Wayback Machine Reputed adj b Oxford English Dictionary Archived from the original on 24 September 2015 Retrieved 24 December 2014 Reputed quart Sizes The Online Quantinary Archived from the original on 26 September 2015 Retrieved 24 December 2014 External links edit nbsp The dictionary definition of quart at Wiktionary nbsp Media related to Quart at Wikimedia Commons Retrieved from https en wikipedia org w index php title Quart amp oldid 1206205499, wikipedia, wiki, book, books, library,
