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Réaumur to Kelvin Calculator



How to use this Réaumur to Kelvin Calculator 🤔

Follow these steps to convert given Réaumur value from Réaumur units to Kelvin units.

  1. Enter the input Réaumur value in the text field.
  2. The Kelvin is calculated in realtime ⌚ using the formula, and displayed under the Kelvin label.
  3. You may copy the resulting Kelvin using the Copy button.


To convert given temperature from Réaumur to Kelvin, use the following formula.

Kelvin = (Réaumur * 5 / 4) + 273.15


Calculation will be done after you enter a valid input.


The Réaumur scale is a temperature scale developed by the French scientist René Antoine Ferchault de Réaumur. On this scale, the freezing point of water is 0 degrees, and the boiling point is 80 degrees under standard atmospheric pressure. While not as widely used as Celsius or Fahrenheit, the Réaumur scale was historically employed in some European countries for scientific and industrial purposes.


The Kelvin scale is an absolute temperature scale named after the Scottish physicist William Thomson, 1st Baron Kelvin. It is commonly used in scientific and engineering applications where an absolute temperature reference is required. The Kelvin scale starts at absolute zero, the point at which all molecular motion ceases. The freezing point of water on the Kelvin scale is 273.15 K, and the boiling point is 373.15 K.