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Lawn Seed and Turf Calculator

Find how much grass seed or how many turf rolls you need for a new lawn or a patch-up.

How this works

Sow new lawns at about 35 g of seed per m² and overseed at 15 to 20 g per m². Turf comes in 1 m² rolls; add 5% for cuts. Seed costs about $12 per kg and turf about $6 per m² delivered.

Questions people ask

How do I use the Lawn Seed and Turf Calculator?

Fill in the fields, starting with “Lawn length”, “Lawn width” and “Method”, and change any other options that match your home. The answer, a drawing and practical tips update as you type, and the Copy link button saves your numbers in a link you can share.

Is the Lawn Seed and Turf Calculator free?

Yes. The Lawn Seed and Turf Calculator is free, with no sign-up, and works on phones, tablets and computers. The results are estimates to help you plan, so check with a qualified professional before structural, electrical, gas or plumbing work.