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FutureStarrHow many liters in a cup
Definition: A gallon is a unit of volume specifically regarding liquid capacity in both the US customary and imperial systems of measurement. The US gallon is defined as 231 cubic inches (3.785 liters). In contrast, the imperial gallon, which is used in the United Kingdom, Canada, and some Caribbean nations, is defined as 4.54609 liters. In both systems, the gallon is divided into four quarts. Quarts are then divided into two pints and pints are divided into two cups. A cup is comprised of two gills, making one gallon equal four quarts, eight pints, sixteen cups, or thirty-two gills. Further differentiating the US and the imperial gallon, a US gill is divided into four fluid ounces, while an imperial gallon is divided into five. A US fluid ounce is therefore 1/128 of a US gallon while an imperial fluid ounce is 1/160 of an imperial gallon. Have you ever asked yourself this question? Well, if your answer was "yes", then you are in luck. If you didn’t know the answer, don’t worry, you’re not the only one. It seems like the easiest question in the world, but for the aviation industry it’s essentially a system of measurement.
One US gallon is defined as 3.7854 liters or 231 cubic inches. At 62°F (17°C), a US liquid gallon of water is equal to 3.78 kgs or 8.34 pounds. It is 16.6% lighter compared to the imperial gallon. However, just like the imperial gallon, a US gallon is divided into four quarts, each quart is divided into two pints, and each pint contains 16 US fluid ounces. Therefore, it takes 128 US fluid ounces to fill a US liquid gallon. It is common to specify the temperature at which the material will weigh or occupy a particular volume. This is done to overcome the change in volume or mass that results from change in temperature. In the US, the weight of alcoholic and petroleum products are defined as 60°F (16°C). The imperial or UK gallon is a unit of measurement exactly 4.54609 liters or 277.42 cubic inches. It is common in the Commonwealth countries and some Caribbean states. The imperial gallon was initially based on 10 pounds which translates to 4.54kg of water at 17 °C. The imperial fluid ounce weighs 1⁄160 of the imperial gallon. An imperial gallon is divided into four quarts, each quart is consisting of two pints, and each pint consists of 20 imperial fluid ounces.
The liter is a unit of volume in the metric system or international standard system of measurement. As you may know, the volume of a liter is considered equal to 1000 cm³ or one cubic decimeter. There are 1000 cm in a decimeter, and cubed just refers to the fact that the object being measured has width, length, and height. Liters were originally defined as the volume possessed by 1 kg of water at the standard pressure and peak density. Until 1964 the kilogram was defined as the mass held by a specific iridium/platinum cylinder located in France, and the intention was that the mass of this kilogram was equal to the mass of 1 L of water at standard pressure. Later measurements of the mass of the kilogram found that the kilogram cylinder was too large, and so the standard for the relation of mass to kilograms was redefined to the current definition. While liters are not officially recognized by the International System of Measurements, the International System of Measurements has accepted the liter for calculations alongside SI units and as a result, SI prefixes can easily be used with liters. The most commonly used unit of measurement is the milliliter, which is one-thousandth of a liter. It is also important to remember that liters can also be referred to as cubic centimeters. Other levels of liter measurement are included decaliter, the hectoliter, the kiloliter, and the megaliter.