Making an equation to convert Celsius degrees to kelvin or Kelvin to Celsius degrees, is a pretty simple process.

• These two scales use the same sized units to measure temperature.
  • In each scale there are 100 units from water's freezing point to its boiling point.
• There is a simple difference of 273 between the Kelvin temperature and the Celsius temperature.
  • 273 must be added to °C to get K or subtracted from K to get °C.

To calculate Kelvin when you know Celsius, add 273.

• K = °C + 273

To calculate Celsius when you know Kelvin, subtract 273.

• °C = K – 273