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Convert Quarter (US) to Kilogram

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Quarter (US)

The quarter (US) is a unit of mass used in the United States, primarily in agriculture. It is equal to 25 pounds or approximately 11.34 kilograms. The quarter is part of the U.S. customary system and is used to measure bulk commodities like grain.

Origin:

The quarter originated in medieval England as a unit of mass for measuring grain and other agricultural products. It was defined as 1/4 of a hundredweight, or 25 pounds. The term "quarter" comes from the Latin word "quartarius", meaning "fourth part". The quarter was used in trade and agriculture for centuries and was adopted in the United States as part of the U.S. customary system.

Kilogram

The kilogram (kg) is the base unit of mass in the International System of Units (SI). It is defined based on the Planck constant (h), a fundamental constant of nature.

1 kilogram is the mass that corresponds to the fixed numerical value of the Planck constant (h), which is 6.62607015 × 10⁻³⁴ joule-seconds (J·s), when expressed in the SI unit J·s = kg·m²·s⁻¹.

This modern definition ties the kilogram to a constant of nature rather than a physical object, ensuring its precision and stability over time.

Before this redefinition, the kilogram was defined as the mass of the International Prototype of the Kilogram (IPK), a physical platinum-iridium cylinder stored in France.

Origin:

The kilogram originated during the French Revolution in the late 18th century as part of the metric system's development. Initially, it was defined as the mass of one cubic decimeter of pure water at 4°C, chosen for its universal availability and consistency. In 1799, a physical standard called the Kilogram of the Archives, a platinum cylinder, was created to represent the unit. Later, in 1889, the International Prototype of the Kilogram (IPK), a more precise platinum-iridium cylinder, was adopted as the global standard, stored in France with copies distributed worldwide.

Over time, physical changes in the IPK led to inconsistencies, prompting scientists to redefine the kilogram. In 2019, it was redefined based on the Planck constant (h), a fundamental constant of nature, linking the kilogram to unchanging physical properties rather than a physical object. This modern definition ensures long-term precision and stability for the unit of mass.

Convert Quarter (US) to other weight-converter units

1 Quarter (US) = 11.33980925 Kilogram

1 Quarter (US) = 11339.80925 Gram

1 Quarter (US) = 11339809.25 Milligram

1 Quarter (US) = 0.0113398093 Metric Ton

1 Quarter (US) = 0.0111607143 Long Ton

1 Quarter (US) = 0.0125 Short Ton

1 Quarter (US) = 25 Pound

1 Quarter (US) = 400 Ounce

1 Quarter (US) = 56699.04625 Carat

1 Quarter (US) = 2 Stone (US)

1 Quarter (US) = 1.7857142857 Stone (UK)

1 Quarter (US) = 175000 Grain

1 Quarter (US) = 0.7770237542 Slug

1 Quarter (US) = 0.1133980925 Quintal

1 Quarter (US) = 1 Quarter (US)

1 Quarter (US) = 0.8928571429 Quarter (UK)

1 Quarter (US) = 0.25 Hundredweight (US)

1 Quarter (US) = 0.2232142857 Hundredweight (UK)

1 Quarter (US) = 388.79341556 Ton (assay) (US)

1 Quarter (US) = 347.13701786 Ton (assay) (UK)

1 Quarter (US) = 0.0113398093 Tonne

1 Quarter (US) = 0.0000113398 Kiloton

1 Quarter (US) = 6.829030038e+27 Dalton

1 Quarter (US) = 1.1563387344 Kilogram-force square second per meter

1 Quarter (US) = 0.025 Kilopound