The conversion formula for a temperature that is expressed on the Celsius(C) scale to its Fahrenheit(F) representation is:
F = (9 / 5) * (C + 32)
The centigrade to Fahrenheit conversion formula is:
C = (5 / 9) * (F - 32)
For an exact conversion (Fahrenheit to Celsius / Celsius to Fahrenheit) the following formulas can be applied:
Fahrenheit to Celsius: (°F − 32) ÷ 1.8 = °C
Celsius to Fahrenheit: (°C * 1.8) + 32 = °F
An approximate conversion between degrees Celsius and degrees Fahrenheit is as follows:
Fahrenheit to Celsius: Subtract 30 and halve the resulting number.
Celsius to Fahrenheit: Double the number and add 30.
Kelvin temperature scale is the base unit of thermodynamic temperature measurement in the International System (SI) of measurement. It is defined as 1/273.16 of the triple point (equilibrium among the solid, liquid, and gaseous phases) of pure water.