Seeding by the acre is a different game than seeding a residential lawn. You’re dealing with bulk bags (40–50 lbs), broadcast or tow-behind spreaders, and costs measured in hundreds of dollars. One acre equals 43,560 square feet (4,046.86 m²) — roughly the size of a football field minus the end zones.
Enter acres directly or use length × width in feet. Instant results.
Open CalculatorPounds of Seed Per Acre by Grass Type
To convert any “per 1,000 sq ft” rate to per acre, multiply by 43.56. Here’s the full table:
| Grass Type | Season | New Lawn (lbs/acre) | Overseeding (lbs/acre) | 50 lb Bags Needed |
|---|---|---|---|---|
| Kentucky Bluegrass | Cool | 87–218 | 44–109 | 2–5 |
| Tall Fescue | Cool | 348–436 | 174–218 | 7–9 |
| Perennial Ryegrass | Cool | 305–348 | 152–174 | 6–7 |
| Fine Fescue | Cool | 174–261 | 87–131 | 4–6 |
| Bermuda Grass | Warm | 131–174 | 65–87 | 3–4 |
| Zoysia Grass | Warm | 44–131 | 22–65 | 1–3 |
| Bahia Grass | Warm | 305–436 | 152–218 | 6–9 |
| Buffalo Grass | Warm | 131–218 | 65–109 | 3–5 |
| Centipede Grass | Warm | 44–87 | 22–44 | 1–2 |
Worked Example: Seeding 1 Acre with Tall Fescue
Broadcast vs. Drop Spreader Settings for Large Areas
For acre-scale seeding, your spreader choice matters significantly:
For the most even coverage on large areas, set your spreader to half the recommended rate and make two perpendicular passes (north-south, then east-west). This eliminates streaking and ensures no bare spots.
Bulk Seed Buying — Bag Sizes and Cost Per Acre
Buying in bulk significantly reduces your per-pound cost. Here’s a general pricing guide:
| Bag Size | Typical Price Range | Cost per Pound | Acres Covered (Tall Fescue) |
|---|---|---|---|
| 5 lb | $12–$25 | $2.40–$5.00 | ~0.013 |
| 10 lb | $20–$40 | $2.00–$4.00 | ~0.026 |
| 25 lb | $35–$65 | $1.40–$2.60 | ~0.064 |
| 50 lb | $50–$90 | $1.00–$1.80 | ~0.128 |
For detailed bag-size coverage calculations, see our 50 lb bag coverage guide.
Frequently Asked Questions
How many pounds of grass seed for 1 acre?
Anywhere from 44 lbs to 436 lbs depending on grass type. Centipede Grass needs the least (44–87 lbs/acre), while Tall Fescue and Bahia Grass need the most (305–436 lbs/acre). Multiply your grass type’s “per 1,000 sq ft” rate by 43.56 for the exact number.
Can I overseed a whole acre?
Yes. Use a tow-behind broadcast spreader, apply at half the new-lawn rate, and time it for fall (cool-season) or late spring (warm-season). Mow existing grass short (1–2 inches) before overseeding so seed reaches the soil. Budget 2–4 hours for a 1-acre project.
How long does 1 acre take to seed?
With a walk-behind broadcast spreader: 3–5 hours including refilling. With a tow-behind spreader pulled by a lawn tractor or ATV: 1–2 hours. Add time for soil prep (tilling, raking) if you’re starting from bare ground.