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  2. Fluid ounce - Wikipedia

    en.wikipedia.org/wiki/Fluid_ounce

    An imperial fluid ounce is 1 ⁄ 20 of an imperial pint, 1 ⁄ 160 of an imperial gallon or exactly 28.4130625 mL. A US customary fluid ounce is 1 ⁄ 16 of a US liquid pint and 1 ⁄ 128 of a US liquid gallon or exactly 29.5735295625 mL, making it about 4.08% larger than the imperial fluid ounce. A US food labeling fluid ounce is exactly 30 mL.

  3. Ancient Roman units of measurement - Wikipedia

    en.wikipedia.org/wiki/Ancient_Roman_units_of...

    11.4 mL 0.401 fl oz 0.385 fl oz cyathus 1 ⁄ 72 congius 45 mL 1.58 fl oz 1.52 fl oz acetabulum 1 ⁄ 48 congius 68 mL 2.39 fl oz 2.30 fl oz quartarius 1 ⁄ 24 congius 136 mL 4.79 fl oz 4.61 fl oz hemina or cotyla 1 ⁄ 12 congius 273 mL 9.61 fl oz 9.23 fl oz sextarius 1 ⁄ 6 congius 546 mL 19.22 fl oz 0.961 pt 18.47 fl oz 1.153 pt congius 1 ...

  4. Biblical and Talmudic units of measurement - Wikipedia

    en.wikipedia.org/wiki/Biblical_and_Talmudic...

    Moses mandated that the standard coinage would be in single shekels of silver; thus each shekel coin would constitute about 15.86 grams (0.51 troy ounces) of pure silver. In Judea, the Biblical shekel was initially worth about 3⅓ denarii , but over time the measurement had enlarged so that it would be worth exactly four denarii.

  5. 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 ...

  6. Cooking weights and measures - Wikipedia

    en.wikipedia.org/wiki/Cooking_weights_and_measures

    In the standard system the conversion is that 1 gallon = 231 cubic inches and 1 inch = 2.54 cm, which makes a gallon = 3785.411784 millilitres exactly. For nutritional labeling on food packages in the US, the teaspoon is defined as exactly 5 ml, [22] giving 1 gallon = 3840 ml exactly. This chart uses the former.

  7. System of units of measurement - Wikipedia

    en.wikipedia.org/wiki/System_of_units_of_measurement

    The troy ounce is the only unit of the system in current use; it is used for precious metals. Although the troy ounce is larger than its avoirdupois equivalent, the pound is smaller. The obsolete troy pound was divided into 12 ounces, rather than the 16 ounces per pound of the avoirdupois system.

  8. United States customary units - Wikipedia

    en.wikipedia.org/wiki/United_States_customary_units

    For nutritional labeling and medicine in the US, the teaspoon and tablespoon are defined as a metric teaspoon and tablespoon—precisely 5 mL and 15 mL respectively. [22] The saying, "a pint's a pound the world around", refers to 16 US fluid ounces of water weighing approximately (about 4% more than) one pound avoirdupois.

  9. Fifth (unit) - Wikipedia

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

    A metric fifth of Dewar's Scotch whisky. A fifth is a unit of volume formerly used for wine and distilled beverages in the United States, equal to one fifth of a US liquid gallon, or 25 + 3 ⁄ 5 U.S. fluid ounces (757 milliliters); it has been superseded by the metric bottle size of 750 mL, [1] sometimes called a metric fifth, which is the standard capacity of wine bottles worldwide and is ...