Enter the injection force (lb) and the projected area (in^2) into the Calculator. The calculator will evaluate the Injection Pressure. 

Injection Pressure Formula



  • IP is the Injection Pressure (psi)
  • F is the force (lb)
  • PA is the projected area (in^2)

To calculate Injection Pressure, divide the injection force by the projected area.

How to Calculate Injection Pressure?

The following steps outline how to calculate the Injection Pressure.

  1. First, determine the force (lb). 
  2. Next, determine the projected area (in^2). 
  3. Next, gather the formula from above = IP = F/PA.
  4. Finally, calculate the Injection Pressure.
  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.

force (lb) = 400

projected area (in^2) = 700