Sprinkler System Design Calculator

Calculate precipitation rate, head count, zone sizing, and run times for sprinkler irrigation systems.

Lawn area (sq ft)

Head spacing (ft)

Row spacing (ft)

GPM per head

Target application (in)

Available flow (GPM)

Tab to move between fields

Precip rate (in/hr)

1.07

Run time per zone (min)

Total heads needed23

Total system GPM57.5

Zones needed5

Heads per zone5

Total watering time (min)140

Weekly water use (gal)4,836

Gpm Per Zone12.5

Coverage Ratio (%)100%

How to Use This Calculator

Enter total lawn or field area in square feet.
Set head spacing and row spacing in feet — use head-to-head spacing for best uniformity.
Enter GPM per head and your available source flow in GPM.
Set target application depth in inches per irrigation event.
Review Precipitation rate (in/hr), Run time per zone (min), and Zones needed to design and program your controller.

Ad Placeholder