Kelvin Converter
Convert Kelvin to Reaumur and more • 15 conversions
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Unit Explanations
KelvinK
Source UnitThe Kelvin (K) is the base unit of temperature in the International System of Units (SI). It is defined by taking the fixed numerical value of the Boltzmann constant, k, to be 1.380649×10^-23 when expressed in the unit J K^-1, which is equal to kg m^2 s^-2 K^-1. The Kelvin is used to measure thermodynamic temperature and is one of the seven SI base units. Unlike Celsius, the Kelvin scale is an absolute scale starting from absolute zero, the point at which all molecular motion ceases.
Current Use
The Kelvin is widely used in scientific research, particularly in physics and chemistry, where precise temperature measurements are crucial. It is also used in engineering applications and space sciences, due to its absolute nature. The Kelvin is vital in any field where temperature plays a critical role, from material science to cosmology.
Fun Fact
The Kelvin scale does not use degrees, unlike Celsius and Fahrenheit.
Réaumur°Ré
Target UnitThe Réaumur scale, also known as the octogesimal scale, is a temperature scale defined by the freezing point of water at 0 degrees Réaumur (°Ré) and the boiling point at 80 degrees Réaumur. It was proposed by the French scientist René Antoine Ferchault de Réaumur in 1730. The scale was widely used in Europe, particularly in France and Germany, until the adoption of the Celsius scale. The Réaumur scale is based on the fractional division of the temperature range between freezing and boiling water, making it an important historical reference in thermometry.
Current Use
Today, the Réaumur scale is largely obsolete and is rarely used in everyday temperature measurements. However, it still holds historical significance and is occasionally referenced in academic contexts or discussions about historical temperature scales. Certain niche industries, especially in food processing and brewing, may still employ the Réaumur scale in specific contexts.
Fun Fact
The Réaumur scale was widely used in the 18th century, especially in France and Germany.
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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.
Kelvin
temperature • SI Unit
Definition
The Kelvin (K) is the base unit of temperature in the International System of Units (SI). It is defined by taking the fixed numerical value of the Boltzmann constant, k, to be 1.380649×10^-23 when expressed in the unit J K^-1, which is equal to kg m^2 s^-2 K^-1. The Kelvin is used to measure thermodynamic temperature and is one of the seven SI base units. Unlike Celsius, the Kelvin scale is an absolute scale starting from absolute zero, the point at which all molecular motion ceases.
History & Origin
The Kelvin scale was developed in the mid-19th century by Lord Kelvin, a prominent physicist, who proposed an absolute temperature scale independent of the properties of a particular substance. This concept of absolute zero provided a uniform scale for comparing temperatures, based on the laws of thermodynamics.
Etymology: Named after Lord Kelvin, born William Thomson, who was a physicist and engineer.
Current Use
The Kelvin is widely used in scientific research, particularly in physics and chemistry, where precise temperature measurements are crucial. It is also used in engineering applications and space sciences, due to its absolute nature. The Kelvin is vital in any field where temperature plays a critical role, from material science to cosmology.
💡 Fun Facts
- •The Kelvin scale does not use degrees, unlike Celsius and Fahrenheit.
- •Absolute zero, 0 K, is theoretically the lowest temperature possible.
- •The Kelvin scale is named after a person, unlike most other SI units.
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Réaumur
temperature • Non-SI
Definition
The Réaumur scale, also known as the octogesimal scale, is a temperature scale defined by the freezing point of water at 0 degrees Réaumur (°Ré) and the boiling point at 80 degrees Réaumur. It was proposed by the French scientist René Antoine Ferchault de Réaumur in 1730. The scale was widely used in Europe, particularly in France and Germany, until the adoption of the Celsius scale. The Réaumur scale is based on the fractional division of the temperature range between freezing and boiling water, making it an important historical reference in thermometry.
History & Origin
The Réaumur temperature scale originated in the early 18th century, developed by the French physicist René Antoine Ferchault de Réaumur. He introduced the scale in 1730, creating a temperature measurement system based on the properties of water. The scale gained popularity in scientific and industrial applications, particularly in France and Germany, before the rise of the Celsius scale.
Etymology: The term 'Réaumur' is derived from the name of its inventor, René Antoine Ferchault de Réaumur, who was a prominent French scientist known for his contributions to thermometry and other fields.
Current Use
Today, the Réaumur scale is largely obsolete and is rarely used in everyday temperature measurements. However, it still holds historical significance and is occasionally referenced in academic contexts or discussions about historical temperature scales. Certain niche industries, especially in food processing and brewing, may still employ the Réaumur scale in specific contexts.
💡 Fun Facts
- •The Réaumur scale was widely used in the 18th century, especially in France and Germany.
- •René Antoine Ferchault de Réaumur was not just a scientist; he was also a member of the French Academy of Sciences.
- •The Réaumur scale is sometimes referred to as the octogesimal scale due to its division of the boiling and freezing points into 80 degrees.
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Frequently Asked Questions
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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.
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