Utility
Rainwater Harvesting Estimate Calculator
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Estimate annual harvestable rainwater from roof area, rainfall, and runoff coefficient.
Output
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Calculated locally in your browser. Use local rainfall data for better accuracy.
Data: None
Client-side-Side
Active
v1.0
How to Use
Enter roof area and annual rainfall to estimate harvestable water.
Disclaimer: This tool is provided "as is" without warranty of any kind. Results are for educational and utility purposes.