Grass Seed Quantity
Apply a product’s labelled sowing rate to an area.
Your numbers
Seed including allowance
Uses the product seed rate and pack mass you enter, with an optional waste allowance. Does not choose a seed variety, sowing season or agronomic application rate.
Scenario comparison
Up to three snapshots in this tab. Loading one replaces the current inputs.
Formula
Use M = Ar(1+w). A is area in m², r is labelled sowing rate in g/m², and w is the waste fraction. M is grams before conversion to kilograms; packs are rounded up using entered pack mass.
Apply a product’s labelled sowing rate to an area.
Worked example
- Net area (m²)
- 20
- Labelled seed rate (g/m²)
- 30
- Waste allowance (%)
- 10
- Pack mass (kg)
- 1
- Seed including allowance
- 0.66 kg
- Packs needed
- 1
Scope and limitations
Uses the product seed rate and pack mass you enter, with an optional waste allowance. Does not choose a seed variety, sowing season or agronomic application rate.
Inputs are checked for missing values and allowed ranges. A result outside the finite numeric range is not displayed. Rounding affects display, while the calculation uses the model’s numeric precision.
Check your units and assumptions before relying on a result. Changing a label does not convert a currency or physical unit.
Formula version: 52efbdd72170 · Example checked: