Grass Seed Calculator

Estimate exactly how much grass seed you need for a new lawn, overseeding, or patching bare spots. Compare costs across popular seed types and bag sizes.

Length (ft)

Width (ft)

Waste / Overlap (%)

Seed Pricing ($/lb — edit to match local rates)

KY Bluegrass ($/lb)

Fescue ($/lb)

Bermuda ($/lb)

Rye ($/lb)

Lawn Area

1,500 sq ft

Seeding rate: 6–8 lbs / 1,000 sq ft

Seed Needed

11.6 lbs

Includes 10% waste/overlap

Best Price

$37.54

Perennial Rye

Bags Needed (Perennial Rye)

3 lb bags

7 lb bags

25 lb bags

Purchase Option	Quantity	Est. Cost
Kentucky Bluegrass	11.6 lbs	$63.53
Fescue Blend	11.6 lbs	$43.31
Bermuda	11.6 lbs	$80.85
Perennial RyeBest value	11.6 lbs	$37.54

Best value: Perennial Rye at $37.54For a new lawn of 1,500 sq ft, you need about 11.6 lbs of seed. Perennial Rye is the most affordable option at $3.25/lb. For best germination, keep the soil consistently moist for the first 2–3 weeks after seeding.

This is an estimate based on average seeding rates. Actual requirements vary by specific seed variety, soil conditions, climate, and site preparation. Always follow the manufacturer's recommended seeding rate printed on the bag.