Pipe Flow Calculations

Pipe Flow Calculations is a practical engineering app for pipe flow, pressure drop, pipe sizing, flow rate and velocity calculations.

The app currently includes two engineering calculators:

• Pipe Diameter Calculator

Calculate the required internal diameter of a round pipe or the required height of a rectangular duct for a given volume or mass flow rate and desired flow velocity. The calculator can also determine flow velocity when the pipe or duct dimensions and flow rate are known.

• Pressure Drop Calculator

Calculate pressure loss in pipes and determine pipe diameter, flow rate or fluid velocity based on the selected calculation mode and known operating conditions.

Both volume flow and mass flow inputs are supported. Calculations can be performed for liquids and gases, with support for fluid density, viscosity, pressure and other relevant flow properties.

For gas calculations, density can also be determined from absolute pressure, temperature and specific gas constant using the ideal gas equation.

Features include:

• Pressure drop calculations

• Pipe diameter and duct sizing

• Flow rate calculations

• Flow velocity calculations

• Round pipes and rectangular ducts

• Volume flow and mass flow input

• Liquid and gas calculations

• Metric and Imperial units

• Multiple engineering unit conversions

• Free and Premium calculators

• Fast and practical engineering calculations

Pipe Flow Calculations is designed for engineers, designers, technicians, students and other users who need quick pipe flow calculations without setting up a full engineering simulation.

The Pipe Diameter Calculator is available free of charge. Additional calculation capabilities are available with Premium access.