Rainwater Harvesting Sizer

Calculate annual catchment volumes and scale tank reserve thresholds sustainably.

Catchment Area Profile

Potential Total Harvested 0 Gallons
Recommended Storage Infrastructure Capacity: 0 Gallon Reservoir
Harvested Collection Yield
0 Gallons (0 Gallon Tank suggested)

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Rainwater Yield Mathematical Models

One inch of rain over a 1 square foot footprint yields exactly 0.6233 gallons of water. The harvesting model multiplies area metrics against systemic friction loss drop factors:

$$\text{Gallons Harvested} = \text{Area (sq ft)} \times \text{Rain Depth (in)} \times 0.6233 \times \text{Efficiency}$$