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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 ⁄128 gal × 231 in 3 /gal × (2.54 cm/in) 3 = 29.5735295625 mL exactly, or about 4% larger than the imperial unit.
64 US fl oz: 1 ⁄ 2 US gallon. Darwin stubby: 2.273 L: 80 imp fl oz: Standard Australian bottle size, equal to half of an Imperial gallon. Later rounded off to 2.25 L (79.18 imp fl oz) after metrication. It's rounded down further to 2 L (70.39 imp fl oz) in states with strict drinking laws. bucket (UK) 18.18 L: 4 imp gal: Obsolete measure. pin ...
Generally, a single shot is equal to 35 ml in Northern Ireland and Scotland and 25 ml in Wales and England. [21] United States 30 to 44 ml (1.0 to 1.5 US fl oz) 59 to 89 ml (2 to 3 US fl oz) There is no official size for a single shot, except in Utah, where a shot is defined as 1.5 US fl oz (44.4 ml). [22]
This second variation is commonly seen in a double-thimble or "hourglass" form, with two metal cups of different volumes (often in a 3:2 or 2:1 ratio, like a U.S. standard 1.5 fl oz "jigger" and 1 fl oz "pony", or UK standard 25/50mL or 35/70mL combos) spot-welded to each other at their relative bottom surfaces, possibly with a handle between ...
In Canada, a teaspoon is historically 1⁄6 imperial fluid ounce (4.74 mL) and a tablespoon is 1⁄2 imperial fl oz (14.21 mL). In both Britain and Canada, cooking utensils come in 5 mL for teaspoons and 15 mL for tablespoons, hence why it is labelled as that on the chart. The volumetric measures here are for comparison only.
[1] [2] Half of a gill is a jack, or an eighth of a pint. [3] But in northern England, a quarter pint could also be called a jack or a noggin, rather than a gill, and in some areas a half pint could be called a gill, particularly for beer and milk. [4] [5] [6]
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]
The minim was defined as one 60th of a fluid dram or one 480th of a fluid ounce. [4] This is equal to about 61.6 μL (U.S.) or 59.2 μL (Britain). Pharmacists have since moved to metric measurements, with a drop being rounded to exactly 0.05 mL (50 μL, that is, 20 drops per milliliter).