Seed Rate Calculator
Enter your target density, thousand grain weight (TGW) and expected establishment to calculate locally.
A QUICK WALKTHROUGH
How to use this tool
- Enter target plants/m².
- Enter TGW in grams and establishment above 0 and up to 100 percent.
- Review seed mass in kg/ha.
Formula
Seed mass (kg/ha) = plants/m² × TGW (g) ÷ establishment percentage. Hectare, thousand-grain, gram-to-kilogram and percentage conversions cancel in this form.
Scope
Establishment is the overall expected share of sown seeds becoming established plants. No additional germination factor or crop recommendation is applied.
GOOD TO KNOW
Common questions
What is TGW?
The mass in grams of one thousand seeds or grains.