Convert Ton (assay) (UK) to Kilogram
Ton (assay) (UK)
The ton assay (UK) is a unit of mass used in the United Kingdom, primarily in the context of assaying precious metals. It is equal to 29.16666667 kilograms or approximately 64.58333333 pounds. The ton assay is used to measure the mass of ore samples in the process of determining the content of precious metals.
The ton assay originated in the United Kingdom as a unit of mass for assaying precious metals. It was defined as 29.16666667 kilograms or approximately 64.58333333 pounds. The term "ton assay" comes from the practice of assaying, which is the process of determining the content of precious metals in ore samples. The ton assay is used in the United Kingdom for this purpose.
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.
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 Ton (assay) (UK) to other weight-converter units
1 Ton (assay) (UK) = 0.0326666667 Kilogram
1 Ton (assay) (UK) = 32.666666667 Gram
1 Ton (assay) (UK) = 32666.666667 Milligram
1 Ton (assay) (UK) = 0.0000326667 Metric Ton
1 Ton (assay) (UK) = 0.0000321507 Long Ton
1 Ton (assay) (UK) = 0.0000360088 Short Ton
1 Ton (assay) (UK) = 0.0720176723 Pound
1 Ton (assay) (UK) = 1.152282757 Ounce
1 Ton (assay) (UK) = 163.33333333 Carat
1 Ton (assay) (UK) = 0.0057614138 Stone (US)
1 Ton (assay) (UK) = 0.0051441195 Stone (UK)
1 Ton (assay) (UK) = 504.12370619 Grain
1 Ton (assay) (UK) = 0.0022383777 Slug
1 Ton (assay) (UK) = 0.0003266667 Quintal
1 Ton (assay) (UK) = 0.0028807069 Quarter (US)
1 Ton (assay) (UK) = 0.0025720597 Quarter (UK)
1 Ton (assay) (UK) = 0.0007201767 Hundredweight (US)
1 Ton (assay) (UK) = 0.0006430149 Hundredweight (UK)
1 Ton (assay) (UK) = 1.119999872 Ton (assay) (US)
1 Ton (assay) (UK) = 1 Ton (assay) (UK)
1 Ton (assay) (UK) = 0.0000326667 Tonne
1 Ton (assay) (UK) = 3.266666666e-8 Kiloton
1 Ton (assay) (UK) = 1.96724339e+25 Dalton
1 Ton (assay) (UK) = 0.003331073 Kilogram-force square second per meter
1 Ton (assay) (UK) = 0.0000720177 Kilopound