Watershed Area Calculator
Calculate drainage area and morphometric parameters of a watershed from perimeter, shape factor, and longest flow path.
Inputs
Results
Drainage Area
50 km²
Area (Hectares)
5,000 ha
How to Use This Calculator
- Enter Watershed Perimeter, Shape Factor, and Longest Flow Path.
- Review Drainage Area (km²) and Area (Hectares) (ha).
- Use Area (Acres) (acres) and Compactness Coefficient to inform your decision.
- Use the chart to visualize the results and explore different scenarios by adjusting inputs.
Formula
A = shapeFactor × (P/4)²; Kc = 0.28 × P / √ARelated Calculators
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