Convert Rankine to Reaumur
Please provide values below to convert Rankine [°R] to Reaumur [°r], or Convert Reaumur to Rankine.
How to Convert Rankine to Reaumur
The conversion between Rankine and Reaumur is not linear or involves a specific formula. Please use the calculator above for an accurate conversion.
To convert from Rankine to the base unit, the formula is: y = Rankine * (5/9)
To convert from the base unit to Reaumur, the formula is: y = (base_unit_value - 273.15) * (4/5)
Rankine to Reaumur Conversion Table
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Rankine
Rankine (°R) is an absolute temperature scale used primarily in engineering, where 0°R represents absolute zero and each degree Rankine is equivalent to one degree Fahrenheit.
History/Origin
The Rankine scale was introduced by William John Macquorn Rankine in 1859 as an absolute temperature scale based on the Fahrenheit degree, primarily used in the United States for thermodynamic calculations.
Current Use
Today, the Rankine scale is mainly used in certain engineering fields within the United States, especially in thermodynamics and heat transfer calculations, but it is largely replaced by the Kelvin scale in scientific contexts.
Reaumur
The Reaumur is a temperature scale where 0°r is the freezing point of water and 80°r is the boiling point under standard conditions.
History/Origin
Developed by René Antoine Ferchault de Réaumur in 1730, it was widely used in Europe for scientific and industrial purposes before being largely replaced by Celsius and Fahrenheit scales.
Current Use
The Reaumur scale is now rarely used, primarily in some regions of France and historical contexts, with most temperature measurements adopting Celsius or Fahrenheit.