Examples
Examples
Try the starting example
- Catchment area (m²)
- 1000
- Rainfall (mm)
- 25
- Runoff coefficient
- 0.6
- Scenario runoff volume (m³)
- 15
Try another scenario
- Catchment area (m²)
- 1100
- Rainfall (mm)
- 25
- Runoff coefficient
- 0.6
- Scenario runoff volume (m³)
- 16.5
Calculation method
Calculation method
Scenario runoff volume (m³)
Volume=area × rainfall/1000 × coefficient.
Symbols and units
- a
- Catchment area (m²)
- b
- Rainfall (mm)
- c
- Runoff coefficient
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Lumped event-volume scenario, not peak flow or drainage design. Supported limits: All required fields must be finite values of the exact declared type and within displayed bounds. Lists contain1–1000 finite numbers. JSON tables are numeric rectangular rows, at most100 rows and30 columns; individual tools have stricter shape/domain constraints. Lumped event-volume scenario, not peak flow or drainage design.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.