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For other uses, see Quart (disambiguation).
Not to be confused with cord (unit).
"Quarts" redirects here. For mineral, see Quartz.


Definitions and equivalencies[edit]

United States liquid quart[edit]


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[edit]


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[edit]


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][need quotation to verify]

Winchester quart[edit]

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[edit]

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]


  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 ^ Text of the Units of Measurement Regulations 1995 as originally enacted or made within the United Kingdom, from the UK Statute Law Database Last accessed:3 May 2011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.