English unit of volume equal to a quarter gallon. All are roughly equal to one liter. Historically, the exact size of the quart has varied with the different values of gallons over time and in quarts to cups to different commodities. Since gallons of various sizes have historically been in use, the corresponding quarts have also existed with various sizes.
In the United States, all 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. In the United States, the dry quart is equal to one quarter of a US dry gallon, or exactly 1. The imperial quart, which is used for both liquid and dry capacity, is equal to one quarter of an imperial gallon, or exactly 1. In the United Kingdom goods may be sold by the quart if the equivalent metric measure is also given. In French Canada, by federal law, the imperial quart is called pinte. The Winchester quart is an archaic measure, roughly equal to 2 imperial quarts or 2. 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.
This has been the exact conversion since the redefinition of the imperial gallon in 1976 in the UK, and in 1964 in Canada. BS350:Part 1:1974 Conversion factors and tables Part 1. Archived from the original on 20 January 2018. Authorized tables” Archived 23 August 2020 at the Wayback Machine, United States Code, Title 15, ch. One US liquid gallon is defined as 231 cubic inches. 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″. Text of the Units of Measurement Regulations 1995 as originally enacted or made within the United Kingdom, from legislation. Archived from the original on 10 August 2017. Due to the fact that a pound measures a unit of weight and a quart measures a unit of volume, the conversion rate varies based on level of density. 1 pound is approximately equal to 0. NOTE: These values are NOT rounded like the above calculator. The volume units in this volume converter tool are based on the metric and the Unites States Customary volume units.