Plant Population Calculator

Your details

Length of the field along the direction of planting rows.
m
Width of the field, measured across the rows.
m
Distance from the centre of one row to the centre of the next.
m
Distance between individual plants along a single row.
m
Set to 2 or 3 for hill-planting crops like cowpea or pumpkin. Leave at 1 for single-plant rows.
Width of access paths that reduce planting space. Leave at 0 if none.
m
Expected percentage of seeds that will germinate successfully. Most commercial seeds are 85-95%.
%
Select your crop to auto-fill seeds per kg for the seed weight estimate.
Total plants in fieldTypical commercial density
106,667

Number of established plants across the whole field at the given spacing

Plant density (per ha)53,334plants/ha
Plant density (per acre)21,584plants/acre
Field area2ha
Seeds to purchase118,519seeds
Seed weight to buy53.87kg
Plants/ha53,334
Plants/acre21,584

106,667 plants across 2.00 ha

  • Your field covers 2.000 ha (4.94 acres) and will hold 106,667 plants at the chosen spacing.
  • Population density: 53,334 plants/ha (21,584 plants/acre). Compare this with typical targets for your crop in the reference table below.
  • At a 90% germination rate you need to plant 118,519 seeds, adding 11,852 extra to hit your target stand.
  • Estimated seed weight to purchase: 53.9 kg (based on average seeds per kg for Maize / Corn).

Next stepCross-check the density against published agronomy guidelines for your variety and region, then adjust spacing to hit the recommended population for your yield target.

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