US Fluid Ounces
Abbreviation/Symbol:
fl oz
Worldwide use:
US fluid ounces are a common unit of volume measurement used primarily in the United States for liquids such as beverages, cooking ingredients, and personal care products.
Definition:
A US fluid ounce is equivalent to approximately 29.5735 milliliters or 1/128th of a US gallon. The US fluid ounce is part of the US customary system of units, which is based on the British imperial system of units.
Origin:
The origin of US fluid ounces can be traced back to the British system of measurement, which was commonly used in the American colonies before the adoption of the metric system. The fluid ounce is a unit of volume that is used to measure the volume of liquid substances. The US fluid ounce is derived from the British imperial fluid ounce, which was based on the volume of one avoirdupois ounce of water. The imperial fluid ounce was later standardized to be equal to 1/160 of an imperial gallon. When the United States gained independence from Britain, it adopted its own system of measurement, which included the US fluid ounce.
Usage context:
US fluid ounces are commonly used in the United States to measure liquid volume. This unit of measurement is particularly prevalent in the context of cooking and baking recipes, as well as in the beverage industry for measuring the volume of liquids such as water, milk, juice, and soda.