It’s the widely used temperature scale in various categories. It is also known as absolute scale. The freezing point of water is 273.15 kelvins. Unlike other two widely used scales (Celsius and Fahrenheit), it’s not represented with degree symbol as per convention. In Physical sciences, Kelvin is the basic/primary unit to measure temperature.
It is the SI unit and one of the base units of System International for temperature. Kelvin is quite similar to centigrade scale where coldest point is -273.16 (as an absolute zero)
It is named after the William Thomson, 1st Baron Kelvin (1824-1907) who was engineer and Physicist at Glasgow University. In 1848, he calculate the absolute -273.15.
In 1954, Kelvin scale is recognized by its third definition via designing the third point of water by the resolution 3 of the General Conference of Weighs and measures.
It’s represented with the symbol K.
Its variants include celsius, fahrenheit, rankine and reaumur, can be converted into one another by the following links:
