Grass Seed Calculator — How Much Grass Seed Do I Need?

Grass Seed Calculator — How Much Grass Seed Do I Need?

Calculate exact pounds of grass seed needed for new lawn installation or overseeding based on turf type and square footage.

🌾 Grass Seed Calculator

Pounds of Seed
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10-lb Bags
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Est. Cost ($35/10lb bag)
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💡 Pro Tip

Avoid seeding in summer heat or winter cold. The germination window is narrow. Test your soil pH before seeding — most grass types prefer 6.0–7.0 pH for optimal nutrient uptake.

Frequently Asked Questions

Q: How much grass seed do I need per square foot?

New lawn seeding: Fescue needs 6–8 lbs per 1,000 sq ft. Kentucky Bluegrass needs 2–3 lbs. Bermuda needs 1–2 lbs. Overseeding requires half these rates.

Q: When is the best time to seed a lawn?

Cool-season grasses (fescue, bluegrass): seed in fall (September–October). Warm-season grasses (Bermuda, Zoysia): seed in late spring (May–June) after soil warms to 65°F+.

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