Irrigation Head Spacing Calculator
Estimate the number of irrigation heads and total GPM for a zone based on area shape and head type.
Best for large turf areas. 15 ft head-to-head spacing. Design pressure: 40 PSI.
Zone area: 600 sq ft
Heads Needed3heads
Total Zone GPM4.5GPM
Design note: This calculator uses head-to-head spacing for full coverage. Zones exceeding 15 GPM typically require a dedicated circuit. For systems with more than 3 zones or complex terrain, consult a licensed irrigation designer.