HomeExpertly
www.homeexpertly.comGrass Seed Calculator
Work out how much grass seed your lawn needs — by area, grass type, new lawn or overseeding, spreader method and slope — with bags to buy, total cost, and a downloadable PDF.
Based on standard university extension seeding rates in pounds per 1,000 sq ft. Overseeding uses roughly half the new-lawn rate. Always check the rate printed on your seed bag. For planning purposes only.
Lawn & Seed
1
Lawn Size
ft
×
ft
sq ft
Length × width. Edit to enter a known lawn area, or subtract driveways and beds.
2
Seed & Method
%
Covers spreader overlap, edges and spillage. 5 to 10% is typical.
3
Bag Size & Cost
lb
$
Common retail sizes are 3, 7, 10, 20 and 50 lb. Cost assumes whole bags — leftover seed stores well in a cool, dry place for about a year.
Seed Estimate
Grass Seed Needed
—
Enter your lawn to begin
Seeding Rate
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Bags to Buy
—
Est. Seed Cost
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Seed Requirement
Seeding rate per 1,000 sq ft—
Lawn area factor—
Base seed—
Spreading method—
Slope allowance—
Waste & overlap—
TOTAL SEED NEEDED—
Lawn Area
—
Cost / 1,000 sq ft
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Leftover Seed
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Seed Needed By Purpose
Pounds of seed for your lawn and grass type
Grass Type Comparison — Your Lawn
| Grass Type | Rate (lb/1k) | Total (lb) | Bags | Cost |
|---|
For a 5,000 sq ft lawn, new lawn rates, 50 lb bags. Real bag prices vary by grass type.