Carat Converter
Convert Carat to Kilogram and more • 73 conversions
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Unit Explanations
Caratct
Source UnitThe carat (symbol: ct) is a unit of weight used for gemstones and pearls, where one carat is defined as exactly 200 milligrams (0.2 grams). This unit originates from the carob seeds historically used as balance scales for weighing precious stones due to their relatively uniform weight. The carat is a crucial metric in the jewelry industry, influencing the value and pricing of gems, where precision in weight can significantly affect market value. The carat is not an SI unit but remains a standard weight measurement in gemology.
Current Use
Today, the carat is widely used in the gemstone and jewelry industries to indicate the weight of diamonds, rubies, emeralds, and other precious stones. It serves as a critical factor in determining the value of these stones, as larger stones are typically more valuable. The carat is also recognized internationally, ensuring consistency in trade and commerce related to gemstones.
Fun Fact
The term 'carat' is used in the jewelry industry, but it also relates to the weight of gold, where 1 carat equals 1/24 of pure gold.
Kilogramkg
Target UnitThe kilogram, abbreviated as kg, is the SI unit of mass and is defined as being equal to the mass of the International Prototype of the Kilogram, which is a platinum-iridium cylinder kept at the International Bureau of Weights and Measures (BIPM) in Sèvres, France. This definition was established in 1889 and was the only base unit defined by a physical object. However, in 2019, the definition of the kilogram was redefined in terms of fundamental constants, specifically the Planck constant (h), which is set at exactly 6.62607015 × 10^-34 joule seconds. This redefinition allows for more precise measurements and ensures that the kilogram remains consistent and reproducible over time.
Current Use
Today, the kilogram is widely used across the globe as the standard unit of mass in scientific, commercial, and everyday contexts. It is employed in various industries including manufacturing, agriculture, and healthcare. For instance, in the food industry, products are often sold by mass, measured in kilograms. In healthcare, medication dosages may also be prescribed based on the patient’s weight in kilograms. While most countries use the kilogram as part of the metric system, some countries, such as the United States, still use imperial units for certain applications, though the metric system is increasingly adopted in scientific and technical fields. The versatility of the kilogram makes it a vital unit in international trade and commerce.
Fun Fact
The kilogram was the first unit of measurement to be defined by a physical artifact.
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= × 1.00000How to Convert
To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.
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Carat
weight • Non-SI
Definition
The carat (symbol: ct) is a unit of weight used for gemstones and pearls, where one carat is defined as exactly 200 milligrams (0.2 grams). This unit originates from the carob seeds historically used as balance scales for weighing precious stones due to their relatively uniform weight. The carat is a crucial metric in the jewelry industry, influencing the value and pricing of gems, where precision in weight can significantly affect market value. The carat is not an SI unit but remains a standard weight measurement in gemology.
History & Origin
The carat has its origins in the carob seeds, which were historically used as a balance scale for weighing gemstones since they have a relatively consistent weight. This practice dates back to ancient civilizations, where traders relied on these seeds to measure precious stones. The use of carob seeds as a standard weight led to the definition of the carat as a specific weight measurement.
Etymology: The term 'carat' derives from the Arabic word 'qīrāṭ,' which refers to the carob seed. This seed was traditionally used in commerce as a unit of weight for precious stones.
Current Use
Today, the carat is widely used in the gemstone and jewelry industries to indicate the weight of diamonds, rubies, emeralds, and other precious stones. It serves as a critical factor in determining the value of these stones, as larger stones are typically more valuable. The carat is also recognized internationally, ensuring consistency in trade and commerce related to gemstones.
💡 Fun Facts
- •The term 'carat' is used in the jewelry industry, but it also relates to the weight of gold, where 1 carat equals 1/24 of pure gold.
- •The largest diamond ever found, the Cullinan diamond, weighed 3,106 carats.
- •The carat weight of a gemstone does not necessarily correlate with its size; the cut of the stone can affect its appearance.
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🔗 Related Units
Kilogram
force • SI Unit
Definition
The kilogram, abbreviated as kg, is the SI unit of mass and is defined as being equal to the mass of the International Prototype of the Kilogram, which is a platinum-iridium cylinder kept at the International Bureau of Weights and Measures (BIPM) in Sèvres, France. This definition was established in 1889 and was the only base unit defined by a physical object. However, in 2019, the definition of the kilogram was redefined in terms of fundamental constants, specifically the Planck constant (h), which is set at exactly 6.62607015 × 10^-34 joule seconds. This redefinition allows for more precise measurements and ensures that the kilogram remains consistent and reproducible over time.
History & Origin
The kilogram originated in the late 18th century during the period of the French Revolution, as part of the efforts to standardize measurements across France and eventually the world. The need for a uniform measurement system became apparent in the wake of the Revolution, as varying local measures were causing confusion and inefficiency in trade and governance. Thus, the metric system was born, with the kilogram being one of its foundational units. The first kilogram was defined as the mass of one liter of water at its maximum density, which is approximately equal to 1,000 cubic centimeters. This practical approach to defining mass allowed for easier adoption across various sectors.
Etymology: The term 'kilogram' is derived from the Greek word 'kilo', meaning 'a thousand', and the French word 'gramme', which itself comes from the Late Latin 'gramma', meaning 'small weight'.
Current Use
Today, the kilogram is widely used across the globe as the standard unit of mass in scientific, commercial, and everyday contexts. It is employed in various industries including manufacturing, agriculture, and healthcare. For instance, in the food industry, products are often sold by mass, measured in kilograms. In healthcare, medication dosages may also be prescribed based on the patient’s weight in kilograms. While most countries use the kilogram as part of the metric system, some countries, such as the United States, still use imperial units for certain applications, though the metric system is increasingly adopted in scientific and technical fields. The versatility of the kilogram makes it a vital unit in international trade and commerce.
💡 Fun Facts
- •The kilogram was the first unit of measurement to be defined by a physical artifact.
- •The International Prototype of the Kilogram lost mass over time, leading to the redefinition in 2019.
- •The kilogram is the only SI base unit with a prefix ('kilo') included in its name.
📏 Real-World Examples
🔗 Related Units
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Frequently Asked Questions
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