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Celsius, Centigrade and Fahrenheit

What is the difference between Celsius, Centigrade and Fahrenheit
What is Celsius?
• This is the most common temperature scale in the world and the simplest to understand.
• Put simply, 0C is the freezing point of water and 100C is the boiling point of water.
• Centigrade is an old fashioned name for Celsius.
• You can abbreviate it to C.
• The scale is named after Swedish scientist Anders Celsius (1701-1744).
C

What is Fahrenheit?
• Fahrenheit is still in everyday use in the USA and preferred by older people in the UK.
• In Fahrenheit the freezing point of water is 32F and the boiling point is 212F.
• You can abbreviate it to F.
• The scale is named after its originator Gabriel Fahrenheit (1686-1736).
F

So what was Centigrade?
• Centigrade is the old fashioned name for Celsius.
• The name Centigrade was derived from the latin - meaning hundred degrees.
• When Anders Celsius created his original scale in 1742 he inexplicably chose 0 for the boiling point and 100 for the freezing point.
• One year later Frenchman Jean Pierre Cristin proposed an inverted version of the scale (freezing point 0, boiling point 100). He named it Centigrade.
• In 1948, by international agreement, Cristin's adapted scale became known as Celsius to honour the Swedish Scientist.

What is the difference between them?
• Celsius, Centigrade & Fahrenheit are all temperature scales.
• All temperatures can be expressed in Celcius or Fahrenheit.
• Both scales have the same value at -40: -40C = -40F

To convert between Celcius or Fahrenheit you can use the following equations:

C = F - 32 x (5/9)

F = C / (5/9) + 32


Automatic Convertor
• View our Celcius Fahrenheit Kelvin temperature scale converter