Grass Seed Calculator
Pounds of seed for a new lawn or overseeding.
Seed needed
10 lb
Rate used
5 lb / 1,000 sq ft
Starter fertilizer
6 lb
Rates vary by species: Kentucky bluegrass 2–3 lb, fescue 6–8 lb per 1,000 sq ft for new lawns — check the bag.
Right rate, right season
Seeding rates differ by species because seed sizes differ enormously — fine bluegrass needs a third the weight of chunky fescue. Cool-season grasses establish best in early fall; spring seeding fights weeds and summer heat.
More seed isn't better
Doubling the rate crowds seedlings into weak, disease-prone turf. Success comes from contact and moisture: rake seed lightly into soil, keep the top inch damp for two to three weeks, and hold off mowing until three inches tall.
Frequently asked questions
- How does the Grass Seed Calculator work?
- Pounds of seed for a new lawn or overseeding.
- Is the Grass Seed Calculator free to use?
- Yes. The Grass Seed Calculator is completely free, runs entirely in your browser, and requires no account or sign-up. Your inputs never leave your device.
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