Convert to Kilograms
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Kilograms
Definition: A kilogram (kg) is the base unit of mass in the International System of Units (SI), defined as exactly 1,000 grams.
History: The kilogram was originally defined in 1795 as the mass of one liter of water. In 1889, a platinum-iridium cylinder was established as the standard, known as the **International Prototype of the Kilogram**. In 2019, the kilogram was redefined based on the Planck constant, ensuring a more stable and precise measurement.