// multi-utility computation suite · offline · instant · precise
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│ computation suite │
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agri.water-use-efficiency Calculator
Measures how efficiently a crop converts applied irrigation water into harvestable yield — Water Use Efficiency (WUE) in kg/m³. Reveals whether water is the limiting factor or whether management changes can improve output without adding more water.
Inputs
Yield T Ha
Reference formula or conversion factor shown for context.
Water Mm
Reference formula or conversion factor shown for context.
Et Crop
Reference formula or conversion factor shown for context.
Rain Mm
Reference formula or conversion factor shown for context.
Results
WUE (kg/m^3)
Reference formula or conversion factor shown for context.
irrigation WUE (kg/m^3)
IRR (internal rate of return) -- the annualised return rate at which net present value equals zero. If IRR exceeds the hurdle rate, the investment adds value.
ET efficiency
Useful output divided by total input, as a percentage. True 100% efficiency is impossible — losses appear as heat. LEDs: 30–50%. Electric motors: 85–97%. Switching supplies: 85–95%.
deficit irrigation ratio
The proportional relationship between two quantities.
yield
Reference formula or conversion factor shown for context.
total water input
The combined total across all inputs and components.