Irrigation Calculator
Water volume and time from area and depth (mm)
Irrigation Input
Water needed
0 L
1mm = 1L per ㎡. Enter the crop water need (mm) for volume and time.
Details
⚠️ This calculator is a simple reference tool based on general agricultural guidelines, recommended dilution ratios, mixing proportions and publicly available references. In real field conditions the appropriate dilution, dose and spray volume can vary with crop type and variety, growth stage, weather, soil, water quality, growing method and the quality/concentration of the materials used, so results may differ from actual needs. Pesticides, fertilizers, liquid fertilizers, microbial inputs, JADAM Sulfur, JADAM Wetting Agent and other natural/chemical materials can cause phytotoxicity, stunting, crop loss, disease or yield reduction through overuse, improper dilution or mixing with incompatible substances. Always check the product label, manufacturer guidance and relevant authorities, and test on a small area before full use. calcstool.com assumes no legal liability for any direct or indirect damage arising from manufacturing, diluting, mixing, fertilizing, spraying or other agricultural activity based on these results.
FAQ
How is irrigation volume calculated?
Water (L) = area (㎡) × depth (mm). 1mm is 1L per ㎡, so 100 pyeong (330.6㎡) at 10mm needs about 3,306L (3.3 tons).
How long does it take?
Time = water ÷ flow rate (L/h). Enter your drip or sprinkler flow for the time.
What depth (mm)?
It depends on crop, stage and weather; 5-20mm per event is common. Adjust to soil and climate.
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