Agriculture & Farming
Irrigation Water Calculator
Lets users plan and optimise irrigation water instantly with formula, steps and examples — no manual math.
Enter your details
m²
mm
times/week
%
40100
Your result
Water per session
1,111 L
Irrigation Water Calculator: 1111 L per watering × 3/week = 3333 L/week.
Weekly water use
3,333 L
Monthly
14,433 L
About this calculator
Water volume (L) = area (m²) × depth (mm) ÷ efficiency, since 1 mm over 1 m² is 1 litre. Drip systems reach ~90% efficiency vs ~65% for sprinklers, cutting water use substantially.
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