Enter the compressor temperature (F) and the saturation temperature  (F) into the Superheat Calculator. The calculator will evaluate the Superheat. 

Superheat Formula

The following two example problems outline the steps and information needed to calculate the Superheat.

SH = C T - ST


  • SH is the Superheat (F)
  • CT is the compressor temperature (F) 
  • ST is the saturation temperature (F)

To calculate the superheat, subtract the saturation temperature from the compressor temperature.

How to Calculate Superheat?

The following steps outline how to calculate the Superheat.

  1. First, determine the compressor temperature (F). 
  2. Next, determine the saturation temperature  (F). 
  3. Next, gather the formula from above = SH = C T – ST.
  4. Finally, calculate the Superheat.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

compressor temperature (F) = 51

saturation temperature  (F) = 24

SH = C T – ST = ?