Lawn Seed & Sod Calculator
Calculate how much seed or sod you need, plus coverage and cost estimates.
Lawn Shape
Dimensions & Grass Type
Your Results
Enter your lawn dimensions above to see results
Grass Seed Coverage Reference
| Grass Type | New Lawn (lb/1,000 sq ft) | Overseeding (lb/1,000 sq ft) |
|---|---|---|
| Bermuda | 2 | 1 |
| Tall Fescue | 8 | 4 |
| Kentucky Bluegrass | 3 | 1.5 |
| St. Augustine | Sod only | Sod only |
| Zoysia | 2 | 1 |
*Illustrative rates. Follow the actual seed label for your product and site.
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Try YARDGEN – It’s FreeChoosing Seed or Sod for Your Lawn
- Seed: A lower upfront material cost, with time needed for establishment. Choose grass for your local climate, light, and intended use.
- Sod: Ready-grown turf offers faster coverage. Verify the actual roll and pallet sizes with your supplier.
- New lawn vs. overseeding: New lawns and existing lawns need different seeding rates. This tool uses half the new-lawn rate for its overseeding estimate.
- St. Augustine: This option uses sod rather than a seed estimate. Ask a local supplier which varieties suit your site.
Frequently Asked Questions
How much grass seed do I need?
Area multiplied by the seeding rate gives the seed weight. The rates here are planning examples; the product label is the right source for the seed you purchase.
How much area does a roll of sod cover?
This calculator assumes a 2 × 5 ft roll covers 10 sq ft and a pallet covers 500 sq ft. Supplier formats vary.
Should I seed or sod my lawn?
Compare your budget, growing season, site preparation, and how soon you need coverage. Neither option replaces soil preparation and establishment care.
How much extra sod should I order?
The bonus calculation shows a 10% allowance. Curves, cuts, and uneven boundaries may require a different allowance.
When should I plant grass seed?
Timing depends on the grass species and local conditions. Your regional extension service or supplier can advise on an appropriate planting window.