Kilogram Converter
Convert Kilogram to Ton Assay (us) and more • 73 conversions
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Unit Explanations
Kilogramkg
Source 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.
Ton Assay (US)ta
Target UnitThe ton assay (US) is a unit of measurement that quantifies the concentration of a specific metal, typically gold or silver, in a mineral ore sample. It expresses the weight of the metal in relation to a ton (2,000 pounds) of ore. This measurement is crucial in mining and metallurgy to determine the economic viability of extracting metals from ore. The assay results are typically reported in parts per million (ppm) or as a percentage, providing a standard metric for evaluating the potential yield of metals from mineral deposits.
Current Use
Today, the ton assay (US) is extensively used in the mining industry, particularly in North America, to assess the economic potential of metal ore deposits. It is a crucial metric for mining companies in decision-making processes regarding exploration, investment, and resource extraction. Additionally, this unit is relevant in environmental assessments to determine the impact of mining operations on surrounding areas.
Fun Fact
The ton assay (US) is often confused with the metric ton, which is approximately 2,204.62 pounds.
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📐Conversion Formula
= × 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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💡 Pro Tip: For the reverse conversion ( → ), divide by the conversion factor instead of multiplying.
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.
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Ton Assay (US)
weight • Non-SI
Definition
The ton assay (US) is a unit of measurement that quantifies the concentration of a specific metal, typically gold or silver, in a mineral ore sample. It expresses the weight of the metal in relation to a ton (2,000 pounds) of ore. This measurement is crucial in mining and metallurgy to determine the economic viability of extracting metals from ore. The assay results are typically reported in parts per million (ppm) or as a percentage, providing a standard metric for evaluating the potential yield of metals from mineral deposits.
History & Origin
The ton assay (US) evolved from earlier methods of assessing mineral content, primarily in the mining industry. It became standard in the 19th century as the mining boom in the United States saw the need for a reliable method to evaluate ore quality. The rise of assay offices in mining towns facilitated this standardization, allowing miners and investors to make informed decisions based on measurable data.
Etymology: The term 'assay' comes from the Old French term 'essayer,' meaning 'to try' or 'to attempt,' reflecting the process of testing the quality of a metal or ore.
Current Use
Today, the ton assay (US) is extensively used in the mining industry, particularly in North America, to assess the economic potential of metal ore deposits. It is a crucial metric for mining companies in decision-making processes regarding exploration, investment, and resource extraction. Additionally, this unit is relevant in environmental assessments to determine the impact of mining operations on surrounding areas.
💡 Fun Facts
- •The ton assay (US) is often confused with the metric ton, which is approximately 2,204.62 pounds.
- •The assay process can take several hours to days, depending on the complexity of the sample and the metals being analyzed.
- •In the early days of mining, assays were often conducted using simple fire techniques, which involved melting the ore to separate metals.
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Frequently Asked Questions
How do I convert to ?▼
To convert to , multiply your value by 1. For example, 10 equals 10 .
What is the formula for to conversion?▼
The formula is: = × 1. This conversion factor is based on international standards.
Is this to converter accurate?▼
Yes! MetricConv uses internationally standardized conversion factors from organizations like NIST and ISO. Our calculations support up to 15 decimal places of precision, making it suitable for scientific, engineering, and everyday calculations.
Can I convert back to ?▼
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