Dalton Converter
Convert Dalton to Kilogram and more • 73 conversions
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Unit Explanations
DaltonDa
Source UnitThe dalton, symbol Da, is a unit of mass that is specifically used in expressing atomic and molecular weights. Defined as one twelfth of the mass of a carbon-12 atom, it is approximately equal to 1.66053906660 × 10^-27 kg. This unit allows for a more convenient representation of the masses of atoms and molecules, which are typically very small numbers. The dalton is widely used in various scientific fields, including chemistry, biology, and physics, to quantify mass in a way that is more relatable to atomic scales.
Current Use
The dalton is widely used in biochemistry, molecular biology, and pharmacology to quantify molecular weights. For instance, proteins, nucleic acids, and other biological macromolecules are often described in daltons, providing a clearer understanding of their size and mass. Many scientific publications and databases utilize the dalton for consistency and clarity in reporting molecular weights.
Fun Fact
The dalton is sometimes referred to as the unified atomic mass unit (u).
Kilogramkg
Target 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.
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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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Dalton
weight • Non-SI
Definition
The dalton, symbol Da, is a unit of mass that is specifically used in expressing atomic and molecular weights. Defined as one twelfth of the mass of a carbon-12 atom, it is approximately equal to 1.66053906660 × 10^-27 kg. This unit allows for a more convenient representation of the masses of atoms and molecules, which are typically very small numbers. The dalton is widely used in various scientific fields, including chemistry, biology, and physics, to quantify mass in a way that is more relatable to atomic scales.
History & Origin
The dalton was named after the English chemist John Dalton, who is best known for his work on atomic theory in the early 19th century. Dalton proposed that matter is composed of atoms, and he developed a system for measuring atomic weights based on hydrogen as the lightest element. His work laid the foundation for modern chemistry and the understanding of atomic structure.
Etymology: The term 'dalton' is derived from the name of John Dalton, reflecting his significant contributions to atomic theory.
Current Use
The dalton is widely used in biochemistry, molecular biology, and pharmacology to quantify molecular weights. For instance, proteins, nucleic acids, and other biological macromolecules are often described in daltons, providing a clearer understanding of their size and mass. Many scientific publications and databases utilize the dalton for consistency and clarity in reporting molecular weights.
💡 Fun Facts
- •The dalton is sometimes referred to as the unified atomic mass unit (u).
- •One dalton is approximately the mass of a single hydrogen atom.
- •In molecular biology, a typical protein can weigh several hundred kilodaltons (kDa), which is equivalent to thousands of daltons.
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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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🔗 Related Units
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Frequently Asked Questions
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To convert to , multiply your value by 1. For example, 10 equals 10 .
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The formula is: = × 1. This conversion factor is based on international standards.
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