Grass seed calculator

Enter the lawn area, choose a new lawn or overseeding and the grass type to get an estimated seed amount.

AreaJobGrass typeSeeding rate

Seed needed estimated—

How is it calculated?

Seed = rate × area. Typical new-lawn rates: tall fescue 6–8 lb, perennial ryegrass 4–8, fine fescue 4–5, Kentucky bluegrass 2–3 and hulled bermudagrass 0.5–1 (unhulled about double) lb per 1,000 sq ft; overseeding uses about half. The rate printed on the seed bag takes priority.

Sources

Turfgrass Establishment: Seeding (W160-B) — UT Extension
Fall Turfgrass Recommendations and Tips — K-State
Turfgrass Establishment Series: Species/Cultivar Selection — Ohio State BuckeyeTurf

Other tools

Planting calendarWhen to sow, when to harvest Soil & mulchHow many bags, how many cubic yards Plant spacingHow many plants fit Fertilizer (NPK)Product amount from the label WateringWeekly water for your area