Grass Seed Calculator — Free Online Tool
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Grass Seed Calculator

Calculate grass seed quantity needed for your lawn

Reference: New cool-season lawns typically require 8–10 lbs per 1,000 sq ft, while overseeding an existing thin lawn requires about 4–5 lbs per 1,000 sq ft.
Lawn Parameters

Calculation Results

⚠️ Actual seed requirements can vary depending on grass species (Kentucky Bluegrass vs. Tall Fescue), soil condition, slope, and whether you are planting from scratch or repairing bare patches. Ensure proper seed-to-soil contact and consistent moisture during germination.

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