Need to determine the volume of inert gas needed for nitrogen purging or nitrogen pigging? This gas pipe volume calculator will help you quickly work out how much inert gas you need to completely flush a line.

Internal Pipe Diameter (i.d.):
Length of Pipe in Feet:
Pressure (psi):
Capacity of Compressor (cfm):


Disclaimer: The formula used in the above calculator is based on information and calculations thought to be reliable. Since your use of the above formula and calculator is outside our control, we make no warranty or guarantee, expressed or implied, for the use or outcome from the results. We disclaim responsibility. It is your sole responsibility as the user to take precautions while applying the above formula and calculation, and you accept all risks of using it. NiGen International L.L.C will in no event be liable to any party for direct, indirect, consequential or special damages from the use of this formula or any other formula.