Calculator · planting
Plant-density calculator
Plants per unit area from row and in-row spacing (and per m²/acre).
Result
Enter values to see a result.
Formula & assumptions
Plant density from spacing
formula v1.0.0 · calc v1 · reviewed 2026-07-12plants/ha = 10000 ÷ (row_spacing_m × in_row_spacing_m)
Applies to: Row crops and orchards with regular geometric spacing.
Assumptions
- Uniform rectangular spacing with one plant per position.
Limitations
- Assumes perfect geometry; gaps, doubles, and headlands reduce actual density.
Sources: Cornell University College of Agriculture and Life Sciences (opens in a new tab), Penn State Extension, The Pennsylvania State University (opens in a new tab)
About this tool
- Assumes perfect rectangular geometry; real stands have gaps, doubles, and headlands.
Educational reference — not a prescription
- These calculators are for education and reference. The quality of any result depends entirely on the accuracy of the values you enter.
- Local agronomic conditions, legal requirements, product labels, and professional advice may override a general calculation.
- Results are not pesticide, fertilizer, irrigation, or veterinary prescriptions, and are not a substitute for advice from a qualified agronomist or your local extension service.