Rainfall Intensity Calculator
Estimate rainfall intensity and total storm volume from rainfall depth, duration, and catchment area. Ideal for hydrologic design and analysis.
Inputs
About the Rainfall Intensity Calculator
The Rainfall Intensity Calculator estimates the rate of rainfall (mm/hr) and total rainfall volume over a specific area and time period. This tool is essential for hydrological analysis, flood management, and drainage system design.
•Formula Used
Rainfall Intensity (I) = P / (t / 60)
where:
P = Rainfall depth (mm)
t = Duration (minutes)
•How to Use
- 1.Enter the total rainfall depth in millimeters.
- 2.Enter the storm duration in minutes.
- 3.Specify the catchment area in square kilometers.
- 4.Click "Calculate" to see rainfall intensity and total volume.
•Applications
- Hydrological and runoff modeling.
- Designing stormwater drainage systems.
- Flood prediction and risk management.
- Agricultural water management and irrigation design.
•Notes
- Ensure consistent units (mm for depth, minutes for duration, km² for area).
- Results are idealized; actual rainfall may vary spatially and temporally.
- For detailed hydrologic design, use local intensity–duration–frequency (IDF) curves.