Hazen-Williams Calculator

Pipe network head loss estimation for water distribution lines.

Pipe length (m)

Flow rate (L/s)

Internal diameter (mm)

Hazen-Williams C

About This Tool

Best suited for water flow in full pipes under conventional assumptions. Use Darcy-Weisbach when broader fluid applicability is needed.

This browser-based calculator runs on-device, helping you iterate quickly while keeping data local.