Water Tool

Irrigation System Sizer

Size peak water demand, verify flow sufficiency, and estimate seasonal irrigation cycles.

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Field size (acres)

Crop type

Peak ET rate (in/day)

Soil type

Available water holding capacity (in/ft)

Irrigation type

System efficiency (%)

Available flow rate (GPM)

Hours/day system can run

Mainline length for head loss (ft)

Pipe sizing assumes PVC (Hazen-Williams C = 140) and targets velocity under 5 ft/s.

× Clear saved inputs

Peak Demand 0 GPM

Acres Coverable at Available GPM 0 acres

Suggested Mainline Diameter N/A

Net Application Rate 0.000 in/hr

Application Depth / Day 0.00 in

Estimated Seasonal Cycles 0 cycles

Annual Water Usage 0.00 acre-feet

Enter system values to evaluate if available flow meets peak demand.