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– Term originates from Latin “quartus” meaning one-quarter
– Derived from the French word “quart”
– In Canadian French, quart is called “pinte”
– In Canadian French, pint is called “chopine”
– Term “quart” in French can have different meanings

– Quarts have existed in various sizes due to historical use of different gallons
– Main article: Gallon

Definitions and Equivalencies:
– US liquid quart equals 0.946352946L
– US liquid quart equals 57.75 cubic inches
– US dry quart equals 1.101220942715L
– US dry quart equals 67.200625 cubic inches
– Imperial quart equals 1.1365225 liters

Winchester Quart:
– An archaic measure equal to 2 imperial quarts or 2.25 liters
– Sometimes referred to as Winchester quart bottles for 2.5L chemical bottles
– Contains slightly more than a traditional Winchester quart

Reputed Quart:
– Equal to two-thirds of an imperial quart or about 0.7577 liters
– Close to one US fifth (0.757 liters)
– Previously a standard size of wine bottle in the UK
– Only about 1% larger than the current standard wine bottle of 0.75L

– The exact conversion since the redefinition of the imperial gallon in 1976 in the UK
– The exact conversion since 1964 in Canada

Quart (Wikipedia)

The quart (symbol: qt) 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.

One-quart milk jugs (top shelf); half-gallon (two-quart) milk jugs (bottom shelf)
General information
Unit ofVolume
Conversions (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 in3
Conversions (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

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