The Hydraulic Diameter of Circular Tube calculator compute the hydraulic diameter of a circular tube based on the diameter of the tube.
INSTRUCTIONS: Choose units and enter the following:
(D) This is the diameter of the tube.
Hydraulic Diameter (DH): The calculator returns the diameter in meters. However, this can be automatically converted to compatible units via the pull-down menu.
The Math / Science
For a circular tube, the hydraulic diameter is simply the diameter of the tube.