Formula and example
How it is calculated
Seed in kg = area × grams per m² × (1 + allowance/100) / 1,000
Worked example
100 m² at 25 g/m² with a 5% allowance requires 2.625 kg of seed.
Things to check
- The application rate depends on the mix and whether you are sowing a new lawn or overseeding. Use the manufacturer's guidance.