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  2. Apothecaries' system - Wikipedia

    en.wikipedia.org/wiki/Apothecaries'_system

    English-speaking countries also used a system of units of fluid measure, or in modern terminology volume units, based on the apothecaries' system. Originally, the terms and symbols used to describe the volume measurements of liquids were the same as or similar to those used to describe weight measurements of solids [33] (for example, the pound by weight and the fluid pint were both referred to ...

  3. Standard drink - Wikipedia

    en.wikipedia.org/wiki/Standard_drink

    A 750 ml (25 US fl oz) bottle of 12% ABV wine contains 9 units; 16% ABV wine contains 12 units; a fortified wine such as port at 20% ABV contains 15 units. 100 ml (3.4 US fl oz) glass of wine (13.5% alcohol) = 1 Australian standard drink; 150 ml (5.1 US fl oz) glass of wine (13.5% alcohol) = 1.5 Australian standard drinks

  4. United States customary units - Wikipedia

    en.wikipedia.org/wiki/United_States_customary_units

    Length. For measuring length, the U.S. customary system uses the inch, foot, yard, and mile, which are the only four customary length measurements in everyday use. From 1893, the foot was legally defined as exactly 1200⁄3937 m (approximately 0.304 8006 m). [13] Since July 1, 1959, the units of length have been defined on the basis of 1 yd = 0 ...

  5. Conversion of units - Wikipedia

    en.wikipedia.org/wiki/Conversion_of_units

    Conversion of units is the conversion of the unit of measurement in which a quantity is expressed, typically through a multiplicative conversion factor that changes the unit without changing the quantity. This is also often loosely taken to include replacement of a quantity with a corresponding quantity that describes the same physical property ...

  6. Baker percentage - Wikipedia

    en.wikipedia.org/wiki/Baker_percentage

    Baker's percentage is a notation method indicating the proportion of an ingredient relative to the flour used in a recipe when making breads, cakes, muffins, and other baked goods. [1][2][3][4] It is also referred to as baker's math, [5][6] and may be indicated by a phrase such as based on flour weight. [1][7] It is sometimes called formula ...

  7. List of unusual units of measurement - Wikipedia

    en.wikipedia.org/wiki/List_of_unusual_units_of...

    The smaller "pony" shot is 20–30 ml (0.70–1.06 imp fl oz; 0.68–1.01 US fl oz). According to Encyclopædia Britannica Almanac 2009, a pony is 0.75 fluid ounces [clarification needed] of liquor. [40] According to Wolfram Alpha, one pony is 1 U.S. fluid ounce. [41] "Double" shots (surprisingly not always the size of two single shots, even in ...

  8. Dram (unit) - Wikipedia

    en.wikipedia.org/wiki/Dram_(unit)

    Dram (unit) The dram (alternative British spelling drachm; apothecary symbol ʒ or ℨ; [a] abbreviated dr) [4][5]: C-6–C-7 [6] is a unit of mass in the avoirdupois system, and both a unit of mass and a unit of volume in the apothecaries' system. [5] It was originally both a coin and a weight in ancient Greece. [7]

  9. Fluid ounce - Wikipedia

    en.wikipedia.org/wiki/Fluid_ounce

    The US fluid ounce is based on the US gallon, which in turn is based on the wine gallon of 231 cubic inches that was used in the United Kingdom prior to 1824. With the adoption of the international inch, the US fluid ounce became 1⁄128 gal × 231 in 3 /gal × (2.54 cm/in) 3 = 29.5735295625 mL exactly, or about 4% larger than the imperial unit.