World Library  
Flag as Inappropriate
Email this Article

Quart

 

Quart

The quart[1] is a unit of volume (for either the imperial or United States customary units) equal to a quarter of a gallon (hence the name quart), two pints, or four cups. Since gallons of various sizes have historically been in use, quarts of various sizes have also existed; see gallon for further discussion. Three of these kinds of quarts remain in current use, all approximately equal to one litre. Its proper abbreviation is qt.[2]

Contents

  • Definitions and equivalencies 1
    • United States liquid quart 1.1
    • United States dry quart 1.2
    • Imperial quart 1.3
  • Winchester quart 2
  • Reputed quart 3
  • Notes 4

Definitions and equivalencies

United States liquid quart

All traditional U.S. 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 meter. From this definition is derived the metric equivalencies for inches, feet, and miles; as well as area measures; and measures of volume. The US liquid quart equals 57.75 cubic inches, which is exactly equal to 0.946352946 litres.[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]
0.946352946 litres[4][6]
33. imperial fluid ounces

United States dry quart

The US dry quart is equal to 1/4 of a US dry gallon, exactly 1.101220942715 litres.

1 US dry quart  = 1/32 US bushels
= 1/8 US pecks
= 1/4 US dry gallons
= 2 US dry pints
= 67.2 cubic inches
1.101220942715 litres[4][6]
38.758 imperial fluid ounces

Imperial quart

The imperial quart, used for both liquid or dry capacity, is equal to one quarter of an imperial gallon, or exactly 1.1365225 litres.

1 imperial quart  = 1/4 imperial gallons
= 2 imperial pints
= 40 imperial fluid ounces
1.1365225 litres[7][8]
69.355 cubic inches
38.430 US fluid ounces

In French Canada, by federal law, the imperial quart is called pinte.[9][10]

Winchester quart

The Winchester quart is an archaic measure,[11] 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 quart bottles, although they contain slightly more than a traditional Winchester quart.

Reputed quart

The Reputed quart was a measure equal to two thirds of an Imperial quart, or one sixth of a gallon, about 0.7577 litres. It was previously recognised as a standard size of wine bottle in the United Kingdom, and is only slightly larger than the current standard wine bottle of 0.75 litres.[12][13]

Notes

  1. ^ The 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 whilst the pint is called chopine.
  2. ^ Daily Language Review - 6th grade level
  3. ^ Authorized tables, U.S. Code, Title 15, ch. 6, subchapter I, sec. 205, accessed 19 July 2008.
  4. ^ a b c Guide for the Use of the International System of Units (SI)—US government publication
  5. ^ One US liquid gallon is defined as 231 cubic inches.
  6. ^ a b This has been the exact conversion since the 1964 redefinition of the litre and the 1959 redefinition of the inch.
  7. ^ This has been the exact conversion since the redefinition of the imperial gallon in 1985 (UK), c. 1964 (Canada).
  8. ^ Text of the Units of Measurement Regulations 1995 as originally enacted or made within the United Kingdom, from the UK Statute Law Database Last accessed:3 May 2011
  9. ^ Measurement Canada
  10. ^ Mesures Canada
  11. ^ Trading Standards - Weights and Measures of the City of Winchester
  12. ^ "Reputed, adj. (b)". Oxford English Dictionary. Retrieved 24 December 2014. 
  13. ^ "Reputed quart". sizes.com. Retrieved 24 December 2014. 
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.