Kelvin
The kelvin (symbol: K) is a unit to measure temperature. It is one of the seven SI base units. It is defined by two factors: zero kelvin is absolute zero (when molecular motion stops), and one kelvin is the fraction 1/273.16 of the thermodynamic temperature of the triple point of water (0.01 °C). The Celsius temperature scale is now defined in terms of the kelvin.
It is named after the physicist and engineer William Thomson, who became Lord Kelvin when he was made a peer.
The kelvin as an SI unit is correctly written with a lowercase k (unless at the beginning of a sentence), and is never preceded by the words degree or degrees, or the symbol °, unlike Fahrenheit, Celsius or centigrade. This is because the latter three are scales of measurement, whereas the kelvin is a unit of measurement.
Conversion factors
kelvin to Celsius
- <math>K - 273.15</math>
Celsius to kelvin
- <math>C + 273.15</math>
kelvin to Fahrenheit
- <math>(1.8 \times K) - 459.67</math>
Fahrenheit to kelvin
- <math>\frac{(F + 459.67)}{1.8}</math>
electron volts to kelvin
- <math>\frac{eV}{11,604}</math>
kelvin to electron volts
- <math>K \times 11,604</math>
External link
- Conversion Calculator for Units of TEMPERATURE (http://www.ex.ac.uk/cimt/dictunit/cctemp.htm)
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