Crop Evapotranspiration (ETc) & Water Demand Calculator
Calculate daily reference evapotranspiration (ET0), crop coefficients (Kc), and total daily irrigation water demand in gallons and liters according to the FAO-56 Penman-Monteith methodology.
Crop & Environmental Parameters
mm/day
Grass reference evapotranspiration.
Acres
Crop Water Demand (ETc)
KC = 1.20 (PEAK CANOPY)
6.60 mm / day
Equivalent to 0.260 inches / day
Daily Total Water Volume
352,792 Gal / day
1,335,464 Liters / day
Continuous Pumping Requirement
245.0 GPM
24-hour continuous flow rate
Weekly Irrigation Depth & Acre-Feet
Weekly Net Application Depth:
1.82 inches / week
Weekly Field Water Volume:
7.58 Acre-Feet