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Hydraulic Radius Calculator — result sheet
Calculate hydraulic radius from flow cross-sectional area and wetted perimeter.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: Hydraulic radius=flow area/wetted perimeter.
The ratio is a geometric input to several open-channel models; no flow rate or friction law is inferred here.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Flow cross-sectional area — minimum 0; maximum 1000000000
- Wetted perimeter — minimum 1.0E-6; maximum 1000000
Worked example
| Input | Value |
|---|---|
| Flow cross-sectional area | 2 |
| Wetted perimeter | 6 |
Hydraulic radius =0.3333 length units.
Assumptions and limits
- Area and wetted perimeter use compatible length units.
- The selected perimeter includes only the boundary in contact with the fluid.
- Slope, roughness, velocity, free-surface shape, and turbulence are not modeled.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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