How we got these numbers
Enter spacing or target population to see the step-by-step.
Formulas
- Plants/ft² (row mode) =
144 ÷ (row(in) × in-row(in))• Metric: Plants/m² ≈ 1550 ÷ (row(cm) × in-row(cm)) - Plants/acre = plants/ft² × 43,560 • per hectare = × 2.47105
- Effective seed fraction = (germ% × purity%) ÷ 10000
- Required seeds = target plants ÷ effective × (1 + reserve%)
- Pounds/acre = seeds/acre ÷ seeds-per-pound • kg/ha = lb/ac × 1.12085
- Plants per 1000 ft row = 1000 ÷ (in-row spacing (ft)) • per 1000 m = 1000 ÷ spacing(m)
Prepared by AgCalculator · Estimates only. Verify before purchasing materials or operating equipment.