hydraulic radius calculator

enter the value and click "calculate", the calculation result will be displayed.

choose a calculator:
 
cross-sectional flow area (a):
m2
wetted perimeter (pw) :
m

calculation result:

what is hydraulic radius?

hydraulic radius is the ratio of the cross-sectional area of ​​a flow channel to its wetted perimeter. this value is an indicator of the efficiency of water flow within the channel.

engineers and hydrologists use hydraulic radius to analyze the hydraulic performance of rivers, streams, canals and even pipes.
search calculator