How Much Topsoil for 500 Square Feet?
For 500 square feet at 6 inches deep — standard for a new lawn or garden bed — you need 10.19 cubic yards of topsoil. That's 367 bags (40 lb) or 275 bags (1 cu ft), with 10% waste included.
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Answer at a glance — 500 sq ft
| Depth | Cu yards | 40 lb bags | 1 cu ft bags | Tons |
|---|---|---|---|---|
| 2" | 3.4 cu yd | 123 | 92 | 3.7 |
| 4" | 6.79 cu yd | 245 | 184 | 7.5 |
| 6" | 10.19 cu yd | 367 | 275 | 11.2 |
| 8" | 13.58 cu yd | 489 | 367 | 14.9 |
| 12" | 20.37 cu yd | 734 | 550 | 22.4 |
All counts include 10% waste, rounded up.
How we calculated it
- Volume = 500 × 6 ÷ 12 = 250 cu ft
- Cubic yards = 250 ÷ 27 = 9.26 cu yd
- With 10% waste = 10.19 cu yd
- 40 lb bags (approx. 0.75 cu ft each) = 367 bags
Compare nearby areas
| Area | At 4" (top-dress) | At 6" (new lawn) | At 8" (garden) |
|---|---|---|---|
| 250 sq ft | 3.4 cu yd / 123 bags | 5.09 cu yd / 184 bags | 6.79 cu yd / 245 bags |
| 500 sq ft | 6.79 cu yd / 245 bags | 10.19 cu yd / 367 bags | 13.58 cu yd / 489 bags |
| 1000 sq ft | 13.58 cu yd / 489 bags | 20.37 cu yd / 734 bags | 27.16 cu yd / 978 bags |
| 2000 sq ft | 27.16 cu yd / 978 bags | 40.74 cu yd / 1467 bags | 54.32 cu yd / 1956 bags |
Depth guide by use
| Application | Recommended depth |
|---|---|
| Overseeding / top-dressing | 2 inches |
| Patching bare lawn spots | 2–4 inches |
| New lawn from seed | 4–6 inches |
| New lawn from sod | 4–6 inches |
| Vegetable garden | 8–12 inches |
| Raised bed (fill) | 12–18 inches |
Bags vs. bulk topsoil
At 10.19 cubic yards, bulk topsoil is usually cheaper than bags. Get quotes from local landscaping suppliers — bulk topsoil typically runs $20–$50 per cubic yard vs. $5–$8 per 40 lb bag.
Use the Topsoil Calculator to enter your exact dimensions and get an instant bag count or cubic yard total.
Frequently Asked Questions
How much topsoil do I need for 500 square feet?
For 500 sq ft at 6 inches deep (standard for new lawn or garden beds), you need 10.19 cubic yards or 367 bags of 40 lb topsoil, with 10% waste included.
How many cubic yards of topsoil for 500 square feet?
At 4 inches: 6.79 cu yd. At 6 inches: 10.19 cu yd. At 8 inches: 13.58 cu yd. All include 10% waste.
How many bags of topsoil for 500 square feet?
At 6 inches: 367 bags of 40 lb topsoil (approx. 0.75 cu ft each) or 275 bags of 1 cu ft topsoil. For areas over 2 cubic yards, bulk delivery is usually cheaper.
How deep should I add topsoil for grass or a garden?
For overseeding an existing lawn: 2 inches. For a new lawn: 4–6 inches. For vegetable gardens: 8–12 inches. For raised beds, fill the full depth with a topsoil/compost mix.
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