Pipe Flow, Head Loss & Pump Power Calculator

Volumetric flow rate Q (m³/h):

Density ρ (kg/m³):

Pipe inner diameter d (m):

Dynamic viscosity μ (N·s/m²): Default: 0.0010518 N·s/m²

Absolute roughness k (m): Default: 0.000075 m

Starting λ (friction factor guess):

Pipe length L (m):

Height difference Δz (m) (end − start):

Total efficiency η (motor + pump + drive): Typical value: 0.7