Quart
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{{wiktionarypar|quart}}
The '''quart'''<ref>The term comes from the [[Latin]] ''[[wikt:quartus|quartus]]'' (meaning one-quarter) via the [[French language|French]] ''[[wikt:quart#French|quart]]''. However, although the French word ''[[:fr:quart (unité)|quart]]'' has the same root, it frequently means something entirely different. In [[Canadian French]] in particular, the quart is called ''[[:fr:pinte|pinte]]'' whilst the [[pint]] is called ''[[:fr:chopine|chopine]]''.</ref> is an [[Imperial unit|imperial]] and [[United States customary units|US customary]] [[unit of measurement|unit]] of [[volume]] equal to a quarter of a [[gallon]]. Since gallons of various sizes have historically been in use, quarts of various sizes have also existed. Three of these quarts remain in current use, all approximately equal to one [[liter]].
==Definitions==
;United States liquid quart
:The US liquid quart is defined as one quarter of a US liquid gallon.
::{|
|-
|1 US liquid quart ||=
|align=right|1/4||US liquid gallons
|-
|||=
|align=right|2||US liquid [[pint]]s
|-
|||=
|align=right|4||US liquid [[Cup (unit)#United States|cup]]s
|-
|||=
|align=right|32||US [[fluid ounce]]s
|-
|||=
|align=right|57.75||cubic [[inch]]es<ref>One US liquid gallon is defined as 231 cubic inches.</ref>
|-
|||=
|align=right|0.946352946||litres<ref name=l&in>This has been the exact conversion since the 1964 redefinition of the litre and the 1959 redefinition of the inch.</ref><ref name=NIST>[http://physics.nist.gov/Document/sp811.pdf Guide for the Use of the International System of Units (SI)]—US government publication</ref>
|-
|||≈
|align=right|33.307||imperial fluid ounces
|}
;United States dry quart
:The US dry quart is defined as 1/32 of a US [[bushel]].
::{|
|-
|1 US dry quart ||=
|align=right|1/32||US bushels
|-
|||=
|align=right|1/4||US dry gallons
|-
|||=
|align=right|2||US dry pints
|-
|||=
|align=right|67.2||cubic inches
|-
|||=
|align=right|1.101220942715||litres<ref name=l&in>↑</ref><ref name=NIST>↑</ref>
|-
|||≈
|align=right|38.758||imperial fluid ounces
|}
;Imperial quart
:The imperial quart, used for both liquid or dry capacity, is defined as one quarter of an imperial gallon.
::{|
|-
|1 imperial quart ||=
|align=right|1/4||imperial gallons
|-
|||=
|align=right|2||imperial pints
|-
|||=
|align=right|40||imperial fluid ounces
|-
|||=
|align=right|1.1365225||litres<ref>This has been the exact conversion since the redefinition of the imperial gallon in 1985 (UK), c. 1964 (Canada).</ref><ref>[http://www.hmso.gov.uk/si/si1995/Uksi_19951804_en_2.htm UK Units of Measurement Regulations 1995]</ref>
|-
|||≈
|align=right|69.355||cubic inches
|-
|||≈
|align=right|38.430||US fluid ounces
|}
==Winchester quart==
A Winchester quart is an [[Winchester measure|archaic measure]] <ref>[http://www.hants.gov.uk/regulatory/tradingstandards/wmhistory.html Trading Standards - Weights and Measures of the City of Winchester<!-- Bot generated title -->]</ref>, roughly equal to 2 Imperial quarts or 2.25 litres. The 2.5 litre bottles, in which laboratory chemicals are supplied, are sometimes referred to as [[Winchester (bottle)|Winchester quart bottles]] although they contain slightly more than a traditional Winchester quart.
==Maritimer English==
In [[Maritimer English]], a quart refers to a quantity of alcohol measuring approximately 750 mL, called a two-six (26 fluid ounces) in the rest of Canada. This is similar in size to the archaic british wine and spirits measure the "reputed quart", which is {{frac|2|3}} imperial quart or ~757.7 ml<ref>[http://www.sizes.com/units/quart_reputed.htm Reputed quart at sizes.com]</ref>
==Notes and references==
{{reflist}}
[[Category:Units of volume]]
[[Category:Imperial units]]
[[Category:Customary units in the United States]]
[[de:Quart (Einheit)]]
[[fr:Quart (unité)]]
[[ko:쿼트]]
[[nl:Quart (eenheid)]]
[[ja:クォート]]
[[pl:Kwarta (jednostka objętości)]]
[[simple:Quart]]
[[sv:Quart]]
[[th:ควอร์ต]]
[[uk:Кварта (об'єм)]]
[[zh:夸脫]]