Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Climate
Rainfall Intensity Calculator
Compute rainfall intensity by dividing total rainfall by the duration in hours. Returns inches per hour, a standard metric for designing drainage and assessing flood risk.
Fill in the required fields to see your result.
Climate
Rainwater Harvesting Calculator
Estimate how many gallons of rainwater your roof can collect each year and how much you could save on your water bill. Ideal for homeowners planning a rain barrel or cistern system.
Fill in the required fields to see your result.
Key differences
| Rainfall Intensity Calculator | Rainwater Harvesting Calculator | |
|---|---|---|
| Category | Climate | Climate |
| Inputs required | 2 | 4 |
| Result | Rainfall Intensity (inches/hour) | Annual Water Cost Savings ($) |
| What it does | Compute rainfall intensity by dividing total rainfall by the duration in hours. Returns inches per hour, a standard metric for designing drainage and assessing flood risk. | Estimate how many gallons of rainwater your roof can collect each year and how much you could save on your water bill. Ideal for homeowners planning a rain barrel or cistern system. |