Kilogram Converter
Convert Kilogram to Attogram 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.
Attogramag
Target UnitAn attogram (ag) is a unit of mass in the metric system, defined as one quintillionth of a gram or 10^-18 grams. It is part of the International System of Units (SI) and is used primarily in scientific contexts where extremely small masses are measured. The attogram is commonly employed in fields such as biochemistry and nanotechnology, where particles and molecules may weigh in the attogram range. This unit allows researchers to express minuscule quantities of substances with clarity and precision, facilitating advancements in various scientific disciplines.
Current Use
Currently, attograms are widely used in scientific research, particularly in fields like biochemistry, molecular biology, and nanotechnology. They allow for the precise measurement of tiny quantities of substances, such as individual proteins or nanoparticles. Laboratories and research institutions often utilize attograms to assess the mass of samples in biochemical assays, drug formulation, and environmental studies. Additionally, advancements in analytical techniques, such as mass spectrometry, have made the measurement of attogram-scale masses more accessible and reliable.
Fun Fact
The attogram is so small that it is often used to measure the mass of individual molecules.
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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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Attogram
weight • Non-SI
Definition
An attogram (ag) is a unit of mass in the metric system, defined as one quintillionth of a gram or 10^-18 grams. It is part of the International System of Units (SI) and is used primarily in scientific contexts where extremely small masses are measured. The attogram is commonly employed in fields such as biochemistry and nanotechnology, where particles and molecules may weigh in the attogram range. This unit allows researchers to express minuscule quantities of substances with clarity and precision, facilitating advancements in various scientific disciplines.
History & Origin
The attogram was introduced as a standard unit of mass in the late 20th century, as the need for measuring extremely small masses became prevalent in scientific research. The International System of Units (SI) established the prefix 'atto-' to denote a factor of 10^-18, which was derived from the Danish word 'atten,' meaning 'eighteen.' This prefix was officially adopted in 1960, allowing for consistent communication of measurements at the microscopic and atomic levels.
Etymology: The term 'attogram' combines the prefix 'atto-', denoting 10^-18, with 'gram,' the basic unit of mass in the metric system.
Current Use
Currently, attograms are widely used in scientific research, particularly in fields like biochemistry, molecular biology, and nanotechnology. They allow for the precise measurement of tiny quantities of substances, such as individual proteins or nanoparticles. Laboratories and research institutions often utilize attograms to assess the mass of samples in biochemical assays, drug formulation, and environmental studies. Additionally, advancements in analytical techniques, such as mass spectrometry, have made the measurement of attogram-scale masses more accessible and reliable.
💡 Fun Facts
- •The attogram is so small that it is often used to measure the mass of individual molecules.
- •One attogram is equivalent to the mass of approximately 10 hydrogen atoms.
- •Research using attograms has led to significant advancements in understanding diseases at the molecular level.
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Frequently Asked Questions
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What is the formula for to conversion?▼
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