Drip Irrigation Design Calculator

Calculate emitter count, system flow rate, zone sizing, and daily run time for drip irrigation systems.

Field area (acres)

Row spacing (ft)

Plant spacing (ft)

Emitters per plant

Emitter flow rate (GPH)

Peak crop ET (in/day)

Available flow (GPM)

Tab to move between fields

Total plants

2,904

Daily run time (hrs)

2.2

Total emitters5,808

System flow (GPM)48.4

Zones needed4

Flow per zone (GPM)12.1

Daily water use (gal)6,398

How to Use This Calculator

Enter your field area in acres and row and plant spacing in feet.
Set emitters per plant and emitter flow rate in GPH for your chosen emitter type.
Enter peak crop ET in inches per day and available water source flow in GPM.
Review Total emitters, System flow (GPM), and Zones needed to size your infrastructure.
Use Daily run time (hrs) to program your irrigation controller for peak-season demand.

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