Rainfall Intensity Calculator
Professional rainfall intensity calculator supporting multiple international standards. Assess precipitation intensity, flood risks, and landslide hazards with adjustable parameters for terrain, drainage, and urbanization.
Classification Standard
Enter Rainfall Parameters
mm
minutes
No calculation results
Enter rainfall parameters and click Calculate to see intensity analysis and risk assessment
About Rainfall Intensity Calculator
What is Rainfall Intensity?
Rainfall intensity measures the rate of precipitation, typically expressed in mm/h (millimeters per hour). It's a critical metric for flood forecasting, urban drainage design, agricultural planning, and disaster prevention. High rainfall intensity over short periods poses greater flood risks than the same precipitation amount spread over longer periods.
Why Rainfall Intensity Matters
- •Flood Risk Assessment: High intensity rainfall can rapidly overwhelm drainage systems, causing urban and river flooding within minutes to hours.
- •Infrastructure Design: Cities and agricultural areas must design drainage systems based on expected rainfall intensity to prevent property damage.
- •Disaster Preparedness: Intensity data enables early warning systems and emergency response coordination for extreme weather events.
- •Agricultural Management: Farmers use intensity forecasts to schedule irrigation, plan field operations, and protect crops from waterlogging.