Seed Spacing Calculator

Seeds from area and spacing

Seed Spacing / Count
Seeds / plants
0 plants
※ Typical spacing: lettuce 25×25cm, cabbage 45×40cm, radish 30×25cm. Allow extra seeds for germination rate.
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 many seeds?
Plants = area ÷ (row × plant spacing). Add 20-50% extra seeds for germination rate.
Typical spacing?
Lettuce 25×25cm, cabbage 45×40cm, radish 30×25cm.
By row?
Yes, calculate from row length, plant spacing and number of rows.
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Seed Spacing

Plants = area ÷ (row × plant spacing). Lettuce 25×25cm, cabbage 45×40cm. Add extra for germination rate.

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