In 1799, the Kilogramme des Archives, a platinum artifact, replaced it as the standard of weight. The kilogram was originally defined in 1795 during the French Revolution as the mass of one litre of water at 4 ☌, which was determined to be 18841 grains. One kilogram can also be written as kg or 1000 g. It is equal to the mass of the International Prototype of the Kilogram (IPK), a cylinder of platinum-iridium alloy stored at the International Bureau of Weights and Measures in France. Kilograms: A Unit of Weight Definition of the KilogramĪ kilogram is a unit of weight that measures how much force an object or substance exerts on a scale due to gravity. Please note this is weight to volume conversion, this conversion is valid only for pure water at temperature 4 ☌. Liter to Fluid Ounce (US) Conversion Table Liter ġ5 L, l = 15 × 33.8140227018 fl oz (US) = 507.Kilogram (kg) is a unit of Weight used in Metric system.Ĭup (cup) is a unit of Volume used in Cooking system. 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. Fluid ounceĭefinition: A fluid ounce (symbol: fl oz) is a unit of volume in the imperial and United States customary systems of measurement.
It is also used to measure certain non-liquid volumes such as the size of car trunks, backpacks and climbing packs, computer cases, microwaves, refrigerators, and recycling bins, as well as for expressing fuel volumes and prices in most countries around the world. However, due to the mass-volume relationship of water being based on a number of factors that can be cumbersome to control (temperature, pressure, purity, isotopic uniformity), as well as the discovery that the prototype of the kilogram was slightly too large (making the liter equal to 1.000028 dm 3 rather than 1 dm 3), the definition of the liter was reverted to its previous, and current definition.Ĭurrent use: The liter is used to measure many liquid volumes as well as to label containers containing said liquids. History/origin: There was a point from 1901 to 1964 when a liter was defined as the volume of one kilogram of pure water under the conditions of maximum density at atmospheric pressure. One liter is equal to 1 cubic decimeter (dm 3), 1,000 cubic centimeters (cm 3), or 1/1,000 cubic meters (m 3). Definition: 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.
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