Convert quarter (US) to kilogram
Please provide values below to convert quarter (US) [qr (US)] to kilogram [kg], or Convert kilogram to quarter (US).
How to Convert Quarter (Us) to Kilogram
1 qr (US) = 11.33980925 kg
Example: convert 15 qr (US) to kg:
15 qr (US) = 15 × 11.33980925 kg = 170.09713875 kg
Quarter (Us) to Kilogram Conversion Table
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Quarter (Us)
A quarter (US) is a unit of weight equal to one-fourth of a pound, commonly used in measuring precious metals and other small quantities.
History/Origin
The quarter originated from the traditional British weight system and was adopted in the United States as a subdivision of the pound. It has historically been used in commerce and trade for precise measurements.
Current Use
Today, the quarter is primarily used in the United States for measuring precious metals, jewelry, and small quantities of certain commodities. It is part of the customary units in the 'Weight and Mass' category within common converters.
Kilogram
The kilogram (kg) is the base unit of mass in the International System of Units (SI), defined as the mass of the International Prototype Kilogram, a platinum-iridium alloy cylinder kept at the International Bureau of Weights and Measures.
History/Origin
The kilogram was originally defined in 1795 as the mass of one liter of water. It was later represented by a platinum standard in 1875, known as the International Prototype Kilogram, which served as the global standard until 2019.
Current Use
Today, the kilogram is defined by the Planck constant, fixed at exactly 6.62607015×10⁻³⁴ joule seconds, ensuring greater precision and stability in measurements worldwide. It is widely used in science, industry, and commerce for measuring mass.