Grass Seed Calculator by Turf Type (Fescue, Bermuda, KBG)

Estimate exact pounds of grass seed for overseeding existing turf or planting a brand new lawn.

Quick Reference Coverage Chart (Mulch & Soil)

Instant pre-calculated material estimates for common US residential project sizes before compaction buffer:

Typical US Project Area Depth Volume Weight Store Bags
Medium Overseed (5,000 sq ft Tall Fescue) 5,000 sq ft 3 lbs / 1k sq ft 17 lbs 17 lbs 2 bags (10 lb)

Engineering Formula & Material Density Constant

Seed Lbs = (Total Sq Ft × Seeding Rate per 1,000 sq ft) ÷ 1,000

Seeding rates vary significantly by grass type. New lawn seeding requires roughly double the seed rate of annual overseeding.

Best Timing for US Lawn Seeding

Cool-season grasses (Fescue, Bluegrass) should be seeded in early fall. Warm-season grasses (Bermuda, Zoysia) thrive when seeded in late spring.

Frequently Asked Questions

How much seed for 1,000 sq ft of tall fescue?

Typically 3 to 4 lbs for overseeding, or 6 to 8 lbs for a brand new lawn.

Related Mulch & Soil Calculators