Irrigation in the Pacific Northwest

1" Application Time

Use this form to calculate the irrigation time to apply one inch of water with a center pivot. Find the irrigated area underneath the center pivot by using the pivot acreage calculator.

Learn more about the units used on this page.

Flow Rate:
Percent of Full Circle:
Irrigation Efficiency:



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