calculatorsonline.co.uk
Rainfall Intensity Calculator
Find rainfall intensity in mm per hour from depth and duration.
⛈️ Free Online Tool
⚡ Instant Results
📊 Clear Comparison
🔒 100% Free Tool
Intensity
Compare Your Options And Get Clear Answers
Find rainfall intensity in mm per hour from depth and duration.
Rainfall Intensity Estimator
Enter your numbers below for an instant estimate.
0
💡 Tip: Intensity = depth / time in hours.
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Rainfall Quick Guide
Typical values for reference.
| Rate | Class | mm/h | Note |
|---|---|---|---|
| Light | Drizzle | Under 2.5 | Slow |
| Moderate | Rain | 2.5-7.6 | Normal |
| Heavy | Downpour | 7.6-50 | Flood risk |
| Violent | Cloudburst | Over 50 | Severe |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Rainfall Intensity Calculator FAQ
Answers to common questions about this calculator.
The rate at which rain falls, in mm per hour.
It gives a quick estimate of rainfall intensity from the values you enter.
No. It is a planning estimate, so check important figures with a professional or official source.
Yes. Edit any field and the result updates when you calculate.