Grass seed calculator.
Sow too little seed and weeds fill the gaps; sow too much and the seedlings choke each other. Enter your lawn size and grass type for a sensible amount - for a brand new lawn or for overseeding a tired one.
You'll need about 2.8 kg ≈ 6.2 lb of seed
📐 Lawn area:
⚖️ Sowing rate:
Tip: buy about 10% extra for edges, patching and birds, and always check the rate printed on your seed bag - it beats any calculator, since it's matched to that exact blend.
⚠️ Sowing rates are typical ranges and vary by cultivar and supplier - the figure on your seed bag is the authority. Sow into well-prepared, raked soil, keep it lightly moist until germination, and sow in the right season for your grass (early autumn for cool-season, late spring for warm-season).