Honey-Do Squad mascotHoney-DoSquadMy List

Grass Seed for 4,000 Square Feet

For 4,000 sq ft at a new lawn rate of 5 lb per 1,000 sq ft, you need about 20 lb of grass seed (1 bags). Switch between new-lawn and overseeding rates below.

Grass seed
20 lb
Lawn area
4,000 sq ft
Seed needed
20.0 lbNew lawn · 5 lb per 1,000 sq ft
25-lb bags to buy
1 bag25.0 lb purchased
Seed left over
5.0 lbafter covering the calculated area
Estimated cost
Add a bag priceoptional
Doing this for work? Estimate the whole job in minutes.
JRIQ turns plans and site photos into full material + labor estimates with AI — built by the team behind these calculators.
Try it free →

Want the full guide — tools, step-by-step, common mistakes and FAQ? See the Grass Seed Calculator.

Other sizes

500 sq ft (new lawn)500 sq ft (overseeding)1,000 sq ft (new lawn)1,000 sq ft (overseeding)1,500 sq ft (new lawn)1,500 sq ft (overseeding)2,000 sq ft (new lawn)2,000 sq ft (overseeding)2,500 sq ft (new lawn)2,500 sq ft (overseeding)