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Temperature conversion table:
For a quick and easy way to explore the conversion factors between commonly used temperature units.
| Unit | Celsius (°C) | Fahrenheit (°F) | Kelvin (K) | Rankine (°R) | Delisle (°De) | Newton (°N) | Réaumur (°Ré) | Rømer (°Rø) |
|---|---|---|---|---|---|---|---|---|
| 1 °C | 1 | 33.8 | 274.15 | 493.47 | 148.5 | 0.33 | 0.8 | 8.025 |
| 1 °F | -17.2222 | 1 | 255.9278 | 460.67 | 175.8333 | -5.6833 | -13.7778 | -1.5417 |
| 1 K | -272.15 | -457.87 | 1 | 1.8 | 558.225 | -89.8095 | -217.72 | -135.3787 |
| 1 °R | -272.5944 | -458.67 | 0.5556 | 1 | 558.8917 | -89.9562 | -218.0756 | -135.6121 |
| 1 °De | 99.3333 | 210.8 | 372.4833 | 670.47 | 1 | 32.78 | 79.4667 | 59.65 |
| 1 °N | 3.0303 | 37.4545 | 276.1803 | 497.1245 | 145.4545 | 1 | 2.4242 | 9.0909 |
| 1 °Ré | 1.25 | 34.25 | 274.4 | 493.92 | 148.125 | 0.4125 | 1 | 8.1563 |
| 1 °Rø | -12.381 | 9.7143 | 260.769 | 469.3843 | 168.5714 | -4.0857 | -9.9048 | 1 |
Definitions
Celsius, also known as centigrade, is a scale and unit of measurement for temperature. The degree Celsius (°C) can refer to a specific temperature on the Celsius scale as well as a unit to indicate a temperature interval.
Fahrenheit is a temperature scale where the freezing point of water is 32 degrees and the boiling point is 212 degrees under standard atmospheric conditions. In the Fahrenheit scale, degrees are denoted as “°F”.
Kelvin is the base unit of temperature in the International System of Units (SI). It is defined by two points: absolute zero, and the triple point of specially purified water. The Kelvin scale is an absolute scale where zero K is absolute zero.
Rankine is a scale of temperature that is measured in degrees Rankine (°R). It is similar to the Kelvin scale but starts at absolute zero, like Kelvin, but uses a degree size the same as Fahrenheit.
The Delisle scale (°De) is a temperature scale in which the boiling point of water is defined at 0 degrees and the freezing point at 150 degrees. It is a historical scale that was used mainly in Russia.
The Newton scale (°N) is a temperature scale devised by Isaac Newton around 1700. In this scale, the freezing point of water is 0 degrees Newton, and the boiling point is 33 degrees Newton.
The Réaumur scale (°Ré), also known as the "octogesimal division", is a temperature scale for which the freezing and boiling points of water are defined as 0 and 80 degrees respectively.
The Rømer scale (°Rø) is a temperature scale named after the Danish astronomer Ole Rømer. In this scale, water freezes at 7.5 degrees and boils at 60 degrees.