Irrigation in the Pacific Northwest

Percent Timer Setting

Older pivots only have a percent timer. Use this form to calculate a timer setting to apply a particular depth. For partial pivots use the numbers for a 360 degree, full rotation. Use the full rotation calculator to find the approximate amount of time it will take for a pivot to make a full rotation. Calculate the time for a 1" application.

Learn more about the units used on this page.

Time for Full Rotation at 100%:
Time for 1" Application:
Application Required:
Percent Timer Setting:



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