Celsius
From Conservapedia
The Celsius is used by scientists to measure temperature. The scale was originally defined such that at standard atmospheric pressure water freezes at 0 ºC and boils at 100 ºC. To convert from Fahrenheit to Celsius take the Fahrenheit temperature, subtract 32 then multiply by 5 and divide by 9.
One Celsius degree is equal to one Kelvin, with an offset such that T(°C) = T(K) - 273.15. So Kelvin's absolute zero (the temperature at which there is no heat) is -273.15 degrees Celsius.
Celsius is the commonly used unit of temperature in Europe and Canada, but in the United States, Fahrenheit is still preferred.
Centigrade is a term commonly used as a synonym of Celsius, especially when giving weather temperature on the air.
See: Metric System
