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Gallons per Square Foot Depth Calculator — result sheet
Convert a liquid volume spread over an area into an equivalent depth and surface loading.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: depth inches=gallons×231/(area ft²×144); loading=gallons/area.
The calculator turns a volume-per-area scenario into an equivalent depth. It is useful for planning surface applications, but it does not determine runoff, infiltration, evaporation, or safe application rates.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Volume (US gallons) — minimum 1.0E-6; maximum 100000000
- Area (ft²) — minimum 1.0E-6; maximum 100000000
Worked example
| Input | Value |
|---|---|
| Volume (US gallons) | 100 |
| Area (ft²) | 1000 |
Loading=0.1 gal/ft²; equivalent depth≈0.1604 in.
Assumptions and limits
- The gallon is a US liquid gallon equal to 231 cubic inches.
- Area is in square feet and the liquid is spread uniformly.
- No local environmental, agricultural, drainage, or chemical rule is inferred.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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