Pipe Annulus Flow Calculator

Annular Pipe Flow Calculator

Outer Diameter (OID, inches): Inner Diameter (IOD, inches): Flow Rate (GPM): Viscosity (cp): Roughness (inches): Density (lb/ft³):

Velocity: ft/s

Reynolds Number:

Fanning Friction Factor:

Darcy Friction Factor:

dP/100 ft (psi):

Message 1:

Message 2:

Disclaimer: The calculators on this website are being provided for educational purposes only. The results are estimates based on information you provide and may not reflect actual results. The results of the calculations are not a promise or guarantee of a specific outcome.
Parv Engineering and Consulting, LLC is not responsible for the content, results, or accuracy of the information on the calculators.
The calculations are hypothetical examples designed to illustrate mathematical functions. The examples are not representative of any final engineering product.

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