Pipe Flow Calculator

Darcy-Weisbach pressure drop with Colebrook friction factor for single-phase flow

Density (kg/m³)

Viscosity (Pa·s)

Velocity (m/s)

Pipe Diameter (m)

Pipe Length (m)

Roughness (mm)

Steel: 0.046, Concrete: 0.3-3, Cast iron: 0.26

Reynolds Number

150,000

Friction Factor

0.019178

Pressure Drop (Pa)

21,574.7

21.57 kPa