Water savings calculator

Estimate the water your area and crop consume, and what demand-based control could save.

Your land

crop

Pick the crop that takes most of the water on this land.

area

The irrigated area, in feddan. Fractions are fine.

current irrigation method

How the land is watered today. This is the single figure the estimate is most sensitive to.

water source

Where the water comes from, and therefore what a cubic metre costs you.

A written report

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The coefficients used

crop	Seasonal requirement of the crop
Wheat	1,470 m³ / feddan
Maize	2,100 m³ / feddan
Rice	4,830 m³ / feddan
Cotton	2,940 m³ / feddan
Sugar beet	2,100 m³ / feddan
Sugarcane	6,720 m³ / feddan
Groundnut	1,890 m³ / feddan
Egyptian clover (berseem)	1,890 m³ / feddan
Alfalfa	5,040 m³ / feddan
Tomato	1,890 m³ / feddan
Potato	1,680 m³ / feddan
Onion	1,596 m³ / feddan
Green beans	1,260 m³ / feddan
Watermelon	1,890 m³ / feddan
Strawberry	1,680 m³ / feddan
Citrus	3,780 m³ / feddan
Mango	3,780 m³ / feddan
Olive	2,310 m³ / feddan
Grapes	2,520 m³ / feddan
Date palm	6,720 m³ / feddan
Banana	5,880 m³ / feddan

Source: Estimated seasonal evapotranspiration of 350 mm under Nile valley and Delta conditions, converted to cubic metres per feddan: 350 mm x 4,200 m2 / 1,000 = 1,470 m3/feddan. Reference: crop water requirement ranges in the FAO Irrigation and Drainage Papers 33 and 56. A planning figure, replaced by site readings once measurement begins.