Biology

Grass Seed Calculator

Estimate the grass seed needed for a lawn.

Calculated Output

Seed needed 10

Formula: pounds = area ÷ 1000 × rate

Step-by-Step Breakdown

1. Values used:

2. Lawn area = 2,000

3. Seeding rate = 5 lb/1000 ft²

5. Seed needed = 10

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The math behind it

pounds = lawn area ÷ 1,000 × seeding rate. New lawns ≈ 5 lb/1,000 ft²; overseeding ≈ 2–3 lb/1,000 ft².

2,000 ft² at 5 lb/1,000 ft² → 10 lb of seed.

Does seed type matter?

Yes — rates differ; fine fescues are sown heavier than ryegrass, for example.