About this calculator
Work out lawn feed from the pack’s application rate.
How it’s calculated
Product (kg) = area (m²) × rate (g/m²) ÷ 1,000.
Worked example
With these inputs:
- Area shape
- Rectangle
- Length
- 15 m
- Width
- 10 m
- Application rate (g per m²)
- 35
- Bag size
- 10 kg
the result is:
- Product needed
- 5.25 kg
- Bags
- 1 × 10 kg
Tips from the trade
- Calibrate the spreader on a driveway first.
- Apply in two passes at right angles to avoid stripes.
Results are estimates for planning and pricing. Check quantities against your drawings, the manufacturer’s data and the Building Regulations before ordering.