The relative temperature scale Celsius was first used in late 1942 by the physicist Anders Celsius, hence the name Celsius; it was defined as the melting temperature of ice under normal atmospheric pressure equivalent to that of the sea
The Fahrenheit is a unit of measurement of temperature, it was first used towards the end of 1724 by the German physicist Daniel Gabriel Fahrenheit hence the name Fahrenheit, it was defined by the melting point of ice which corresponds to 32°F and the boiling point which corresponds to 212°F
To calculate the temperature in Fahrenheit from degrees Celsius, simply use the following formula:
Celsius * 9 / 5 + 32 = Fahrenheit
Example: for 5°C the equivalent in Fahrenheit is 41°F
5 * 9 / 5 + 3 = 41°F
To calculate the temperature in degrees Celsius from Fahrenheit, simply use the following formula:
((Fahrenheit - 32) * 5 / 9) = Celsius
Example: for 10°F, the equivalent in degrees Celsius is -12.2222°C
((10 - 32) * 5 / 9) = -12.2222°C