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Irrigation CalculatorYour Partner in Water Management
Irrigation rate

Orchard application rate calculator.

Fast field math for inches per hour and gallons per tree, built for drip and micro systems on a phone.

Application rate0.000Inches per hour
Tree output0.00Gallons per tree per hour

Inputs

Set up for fast phone use.

ft
Distance between rows.
ft
Distance between trees in row.
in
Spacing along the line in inches.
gph
Flow from one emitter.
qty
Use 2 for double-line systems.
%
Optional net adjustment.
Included in the text message.
Included in the text message.

Results

Gross and net kept separate.

Emitters per tree0.00
Gross gallons/tree/hour0.00 gph
Net gallons/tree/hour0.00 gph
Gross application rate0.000 in/hr
Net application rate0.000 in/hr
Gross gallons/acre/hour0 gph/ac
Net gallons/acre/hour0 gph/ac
Ready. Formula is gallons per tree per hour divided by tree area, times 1.6.
Text preview will appear here after calculation.

Formulas

Plain math, no clutter.

Emitters per tree = tree spacing in feet × 12 ÷ emitter spacing in inches × lines per row
Gross gallons/tree/hour = emitters per tree × emitter output
Gross application rate = gross gallons/tree/hour ÷ (row spacing × tree spacing) × 1.6
Net output = gross × DU
Manual Application Rate Formula Application Rate (in/hr) = Emitter Output (GPH) × 231.1 / (Row Spacing (in) × Emitter Spacing (in))
For dual line drip, divide emitter spacing by 2 before calculating.
Grange Enterprises LLC
559-939-2999
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