Irrigation in the Pacific Northwest

Select a Calculator

These irrigation calculators will help compute your irrigation needs based on your growing practices, types of soil, and vegetation.

Sprinkler Calculators
Center Pivot Calculators
Chemigation Calculators
General Calculators
Water Measurement Calculators


A staff gauge measures water levels



WSU Prosser - IAREC, 24106 N Bunn Rd, Prosser WA 99350-8694, 509-786-2226,