Convert Kelvin (K) to Réaumur (°Ré)
Conversion:
1 Kelvin (K) = -217.72 Réaumur (°Ré)
How to Convert Kelvin (K) to Réaumur (°Ré)
1 k = -217.72 re
1 re = 274.4 k
Example: convert 15 Kelvin (K) to Réaumur (°Ré):
25 k = -198.52 re
Kelvin (K) to Réaumur (°Ré) Conversion Table
| Kelvin (K) | Réaumur (°Ré) |
|---|---|
| 0.01 k | -218.512 re |
| 0.1 k | -218.44 re |
| 1 k | -217.72 re |
| 2 k | -216.92 re |
| 3 k | -216.12 re |
| 5 k | -214.52 re |
| 10 k | -210.52 re |
| 20 k | -202.52 re |
| 50 k | -178.52 re |
| 100 k | -138.52 re |
| 1000 k | 581.48 re |
Kelvin (K)
Definition
The kelvin (K) is the SI base unit of temperature. Its zero point (0 K = −273.15°C) is absolute zero, the theoretical lowest possible temperature. Each kelvin increment equals one degree Celsius.
History
The kelvin was named after Lord Kelvin (William Thomson), who proposed the absolute temperature scale in 1848. It was adopted as the SI base unit of temperature in 1954, and its definition was revised in 2019 based on the Boltzmann constant.
Current use
Kelvins are the standard temperature unit in physics, chemistry, astronomy, and engineering. Color temperatures of light, cosmic background radiation, and thermodynamic calculations all use kelvins.
Réaumur (°Ré)
Definition
Réaumur (°Ré) is a temperature scale where 0°Ré equals the freezing point of water and 80°Ré equals the boiling point of water.
History
The Réaumur scale was proposed in 1730 by René Antoine Ferchault de Réaumur, a French scientist. It was widely used across Europe, particularly in France, Germany, and Russia, until the late 19th century.
Current use
The Réaumur scale is nearly obsolete but still occasionally referenced in European cheese-making and some Italian candy-making traditions. It also appears in historical scientific texts.