In the metric system, "kilo" is the prefix for thousands, or 10 3. The kilogram, or kilogramme, is the SI base unit for mass and is also a multiple of the gram. It is equal to the mass of 1,000 cubic centimeters of water. The 2019 SI brochure now defines the kilogram using the Planck constant, and it is defined using the meter and second. One kilogram was previously equal to the mass of the platinum-iridium bar, known as the International Prototype of the Kilogram, which was stored in Sèvres, France. The formal definition of the kilogram changed in 2019. One kilogram is equal to 1,000 grams, 2.204623 pounds, or 1/1,000 of a metric ton. Keep reading to learn more about each unit of measure. Trucks, ships, and airplanes are limited in the amount of weight or volume they can transport, so if one of those quantities is known, but the limitation is on the other, then it becomes necessary to convert between the two so as not to overload the shipping vehicle. Ī third application of weight and volume conversions is when shipping freight when calculating the volumetric weight for cargo and packages. It is common to mix powdered chemicals with liquid, or aqueous, chemicals, and this is where it becomes very useful to convert between weights and volumes. When performing chemical reactions by combining separate chemicals to produce a new chemical, one must know the exact amount of each chemical to add in order to maximize the yield of the reaction. When a scale is not available, a calculator like the one above is a good way to estimate the weight to volume conversion.Īnother useful application of weight and volume conversions is chemistry. The best way to ensure an accurate conversion is to use a scale. The density of dry ingredients can vary for a variety of reasons, such as compaction and clumping. Kilograms and liters are both commonly used to measure cooking ingredients.įor cooking applications, most chefs suggest measuring dry ingredients by weight rather than volume to improve accuracy in the measurements. Liters = 5 kg ÷ 0.7 kg/L = 7.1429 L When to Convert Kilograms to Liters
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