Open-Channel Flow of Water Calculator Using Chezy and Manning

Engineering Calculators
Section Properties Menu
Engineering Metals and Materials
Strength of Materials

This calculator uses Chézy and Manning's equation to determine the wetted perimeter, hydraulic radius, flow area, Chézy coefficient and flow velocity.

For Manning's n coefficient, see Mannings roughness coefficient

Input Data
Slope:
Channel Bottom Width (ft):
Channel Depth (ft):
Channel Top Width (ft):
Channel Height (ft):
Manning n factor:
Results
flow =
ft3/s
flow =
gal/min
Fluid velocity =
ft/s
Fluid perimeter =
ft
flow area =
ft2
hydraulic radius =
ft
C value =
-