Как это работает
- 1Enter the requested values.
- 2Choose the units or calculation options that match your data.
- 3Calculate and review the result and assumptions.
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BROWSER · Local JavaScript · agricultural formula
ET₀ Calculator – FAO56
Estimate daily reference evapotranspiration with the FAO-56 Penman–Monteith equation using temperature, humidity, radiation, wind and elevation.
✓ Local browser calculation✓ Agricultural units and formula-aware validation✓ Responsive results for desktop and mobile
Inputs
Results
Reference ET₀
—
Mean temperature
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Saturation vapor pressure (es)
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Actual vapor pressure (ea)
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Vapor pressure deficit
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Calculation aid only: verify units, product labels, laboratory/soil-test results and local agronomic recommendations before field use.
Об этом инструменте
Estimate daily reference evapotranspiration with the FAO-56 Penman–Monteith equation using temperature, humidity, radiation, wind and elevation.
Common uses
fao56 et0 calculatorcalculate fao56 et0compute fao56 et0
Часто задаваемые вопросы
Does this calculator upload my data?
No. The calculation runs locally in your browser.
Should I treat the result as an agronomic recommendation?
No. It is a calculation aid. Product labels, soil/lab results, crop requirements and local regulations or extension recommendations remain authoritative.