// multi-utility computation suite · offline · instant · precise
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│ computation suite │
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env.water-footprint-crop Calculator
Calculates the blue, green, and grey water footprint of a crop from field area, evapotranspiration data, and irrigation source mix. The water footprint of food production is invisible to consumers but accounts for 92% of humanity's freshwater use.
Inputs
Yield Kg Ha
Reference formula or conversion factor shown for context.
Et Mm
Reference formula or conversion factor shown for context.
Precipitation Mm
Reference formula or conversion factor shown for context.
Irrigation Efficiency Pct
Useful output divided by total input, as a percentage. 100% is impossible due to losses (heat, friction, resistance).
Results
blue water footprint (L/kg)
The value at the specified point or condition.
green water footprint (L/kg)
The value at the specified point or condition.
total water footprint (L/kg)
The combined total across all inputs and components.
blue water (irrigation)
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.
green water (rain)
The value at the specified point or condition.
beef WF
Reference formula or conversion factor shown for context.