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One liter is equal to 1 cubic decimeter (dm 3), 1,000 cubic centimeters (cm 3), or 1/1,000 cubic meters (m 3). Literĭefinition: A liter (symbol: L) is a unit of volume that is accepted for use with the International System of Units (SI) but is technically not an SI unit. It is mostly used in the United States and the United Kingdom, as one of the many measurements of volume used. After the adoption of the international inch in 1959, the US fluid ounce became equal to exactly 29.5735295625 mL.Ĭurrent use: As the name indicates, the fluid ounce is typically used as a measurement of liquid volume. The United States fluid ounce was initially based on the wine gallon used in England prior to 1824. The imperial gallon's definition was later changed to be equal to 4.54609 liters, making the imperial fluid ounce equal to exactly 28.4130625 mL. In 1824, the imperial gallon was defined as the volume of ten pounds of water at a temperature of 16.7☌. History/origin: The fluid ounce was originally based on the volume occupied by one ounce (weight) of a given liquid such as wine or water, thus varying based on the system being used. The imperial fluid ounce is 1/20 of an imperial pint, and 1/160 of an imperial gallon, which is equal to 28.4 mL. The US fluid ounce is 1/16 of a US fluid pint, and 1/128 of a US liquid gallon, which is equal to 29.57 mL. Definition: A fluid ounce (symbol: fl oz) is a unit of volume in the imperial and United States customary systems of measurement.
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