Temperatures scale

Celsius scale The common scale of temperature, named after the Swedish astronomer Anders Celsius. On this scale the boiling point of water is 0° and the boiling point 100°. It is a Centigrade scale, the interval between 0° and 100° being split up into 100 divisions (centi-). Temperatures are expressed in degrees Celsius (°c)

Fahrenheit scale A scale of temperature, named after the German physicist Gabriel Fahrenheit. On this scale, once widely used in English-speaking countries, water freezes at 32° and boils at 212°.

Kelvin The unit of temperature of the absolute temperature scale, symbol K. The freezing point of water is 273 16K
Absolute temperature A temperature scale based on the absolute zero of temperature. The absolute Kelvin scale uses Celsius units.