Construction calculator
Irrigation Calculator
Estimate sprinkler head count, total design flow, and zone count using project area, head coverage, overlap, and available flow.
Sprinkler planning
Irrigation Calculator
Sprinkler heads
11
3 zone(s) at the available flow estimate.
Adjusted area
2,400 sq ft
Includes overlap
Total design flow
27.5 gpm
Heads x flow per head
Zones
3
Based on available flow
Common Tools Used for Project Measurements
Project calculators usually need room dimensions, surface area, package coverage, or product label values.
Tape measure
Laser distance measurer
Level
Product coverage label
Notebook or floor plan
Keep measurements in one unit while entering values, then use the result as a planning estimate.
Formula
heads = adjusted area / coverage per head; zones = total flow / available flow
Pressure, pipe size, elevation, head pattern, precipitation rate, plant type, soil, controller capacity, and local watering rules require professional design checks.
Common Examples
| Input | Estimate |
|---|---|
| 2,000 sq ft lawn | Start with measured irrigated area |
| 225 sq ft per head | Example coverage assumption |
| 10 gpm available flow | Used to estimate zones |