Grass Seed Calculator

Seeding rates vary a lot by species — dense-seeded tall fescue needs about 8 lb per 1,000 sq ft for a new lawn, while Kentucky bluegrass needs only 3 lb, and Bermuda 1–2 lb. Overseeding an existing lawn takes about half the new-lawn rate.

More seed is not better: overseeded stands compete with themselves and thin out. Match the bag's stated rate when it differs from these typical values.