YielixCalculate reference evapotranspiration using the FAO-56 Penman-Monteith equation for irrigation planning
Calculate crop water needs from ET₀, crop coefficient, and irrigation efficiency
Calculate how long to run your irrigation system based on flow rate, area, and target application depth
Calculate friction head loss in irrigation pipes using the Hazen-Williams equation
Calculate required pump power from flow rate and total dynamic head for irrigation systems
Calculate emitter count, total flow, and lateral length for drip irrigation layout
Calculate effective rainfall using the USDA-SCS method to determine irrigation reduction
Calculate irrigation scheduling from soil properties, root depth, and daily crop water use
Calculate seasonal irrigation water and energy costs per hectare or acre
Irrigation Guides
How to Calculate Crop Water Requirements
Learn how to use ET₀ and crop coefficients to determine exactly how much water your crops need throughout the growing season.
Irrigation Scheduling: When and How Much to Water
Master irrigation timing using soil moisture, MAD thresholds, and crop water use to prevent both over- and under-watering.
Designing a Drip Irrigation System
Step-by-step guide to designing a drip irrigation system including emitter spacing, pipe sizing, and pump selection.