How Much Topsoil Do I Need?
Calculate the exact amount of topsoil for gardens, lawns, raised beds, and landscaping. Get results in cubic yards and tons with cost estimates.
Quick Answer
A 1,000 sq ft new lawn at 4 inches deep needs about 12.3 cubic yards (~13.3 tons) of topsoil, costing roughly $246–$677 for material. A standard 4×8 ft raised bed at 10 inches needs about 1 cubic yard.
Enter your dimensions above to calculate topsoil needed.
💡 1 cubic yard of topsoil covers approximately 81 sq ft at 4 inches deep
How to Calculate Topsoil Needed
Formula
Length (ft) × Width (ft) × Depth (in) ÷ 324 = Cubic Yards
Multiply your area's length by width to get square footage. Multiply by depth in inches, then divide by 324 to convert to cubic yards.
Example
For a 12 ft × 10 ft garden bed with 4 inches of topsoil: 12 × 10 × 4 ÷ 324 = 1.48 cubic yards. At 1.08 tons per cubic yard, that's about 1.6 tons.
Tips & Best Practices
- •For establishing good-quality turf, Penn State Extension recommends roughly 4–6 inches of good-quality topsoil at firmed or settled depth. The calculator's 4-inch default is a reasonable lower-end lawn planning value.
- •For broader landscaping and planting, USDA NRCS says at least 6 inches of topsoil is preferable for most plants.
- •Screen or sifted topsoil is best for lawns; garden blend works for beds.
- •The calculator shows geometric volume. If you need a specific finished depth after settling or grading, allow for site conditions and supplier guidance rather than assuming one universal percentage.
Quick Reference
1 cubic yard of topsoil covers approximately 81 sq ft at 4 inches deep
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Not sure of your area? Measure it on a satellite map →
How Much Topsoil Do I Need? Coverage by Depth
One cubic yard of topsoil covers approximately 81 square feet at 4 inches deep. For establishing good-quality turf, plan on roughly 4–6 inches at firmed depth; for planting beds, at least 6 inches is preferable.
The exact amount of topsoil you need depends on the depth required for your project. Use the table below to estimate how much area one cubic yard of topsoil covers at common depths.
| Depth | Coverage per Cubic Yard | Best For |
|---|---|---|
| 1 inch | ~324 sq ft | Topdressing lawns |
| 2 inches | ~162 sq ft | Overseeding prep |
| 4 inches | ~81 sq ft | New lawn (lower-end depth) |
| 6 inches | ~54 sq ft | Garden beds & flower beds |
| 12 inches | ~27 sq ft | Raised bed fill |
The calculator shows geometric volume. If you need a specific finished depth after settling or grading, allow for site conditions and supplier guidance rather than assuming one universal percentage.
Coverage chart
1 Cubic Yard of Topsoil — Coverage by Depth
Assumes level ground. Add 10% for uneven terrain or settling.
Need a full depth guide? Read our How Much Topsoil Do I Need? →
Topsoil for New Lawns & Overseeding
For establishing good-quality turf, Penn State Extension recommends roughly 4–6 inches of good-quality topsoil at firmed or settled depth. A 1,000 sq ft lawn at 4 inches deep requires about 12.3 cubic yards (~13.3 tons) of topsoil — the calculator's 4-inch default is a reasonable lower-end lawn planning value, not a universal rule.
Starting a new lawn or fixing bare patches? Topsoil depth is the difference between a lawn that thrives and one that struggles.
New Lawn Installation
For a brand new lawn from seed or sod, you need 4–6 inches of quality topsoil. This gives grass roots enough depth to establish. Use screened topsoil for the smoothest surface.
Overseeding & Topdressing
For overseeding an existing thin lawn, ½–1 inch of fine topsoil works best. Apply evenly with a rake after spreading seed. This is enough to protect seeds without smothering existing grass.
How Much Topsoil for a New Lawn?
| Lawn Size | Cubic Yards (4" depth) | Tons (approx.) | Est. Cost |
|---|---|---|---|
| 500 sq ft | 6.2 yd³ | ~6.7 tons | $124–$341 |
| 1,000 sq ft | 12.3 yd³ | ~13.3 tons | $246–$677 |
| 2,500 sq ft | 30.9 yd³ | ~33.4 tons | $618–$1,700 |
| 5,000 sq ft | 61.7 yd³ | ~66.6 tons | $1,234–$3,394 |
Costs use YardCalc's generic $20–$55 per cubic yard planning range. Screened topsoil is roughly $30–$50 per cubic yard in current 2026 supplier examples, such as those compiled by Landscape Supply Finder. Delivery is extra, so confirm local pricing before ordering.
Laying sod instead of seeding? Check our sod calculator → to estimate how many rolls you'll need.
Topsoil for Garden Beds & Raised Beds
A standard 4×8 ft raised bed needs about 1 cubic yard of topsoil to fill 10 inches deep. In-ground garden beds need 6–8 inches.
For broader landscaping and planting, USDA NRCS says at least 6 inches of topsoil is preferable for most plants. Garden beds and raised beds generally need deeper topsoil than lawns since vegetable and flower roots need room to grow.
In-Ground Garden Beds
Add 6–8 inches of topsoil mixed with compost to existing beds. A 4×8 ft bed at 6 inches needs about 0.6 cubic yards. Use a garden blend topsoil for best results.
Raised Beds
Most raised beds are 8–12 inches deep. Fill with a 50/50 mix of topsoil and compost. A standard 4×8 ft raised bed at 10 inches deep takes about 1 cubic yard.
Grading & Leveling
For filling low spots and leveling a yard, depth varies. Measure the deepest and shallowest points, average them, and use the calculator above for an accurate estimate.
Topsoil vs. Garden Soil vs. Compost
Topsoil is screened natural soil — best for volume fill and lawn establishment. Garden soil is topsoil mixed with compost and amendments — best for beds. Compost is fully decomposed organic matter — best for enriching existing soil. For most projects, start with topsoil as your base and amend from there.
Before You Order
- ☐Test your existing soil pH before ordering — amendments may matter more than added volume
- ☐Confirm you need screened topsoil, not fill dirt — they are not interchangeable
- ☐Decide depth by use: lawns roughly 4–6 in at firmed depth / planting beds at least 6 in / raised beds fill to top
- ☐Measure from current grade to your target finish grade, not just the low spots
- ☐The calculator shows geometric volume — allow for site conditions and supplier guidance if you need a specific finished depth after settling
Ordering in bulk?
For anything over a cubic yard or two, bulk screened topsoil is significantly cheaper than bags. Compare local pricing and delivery availability at AggregateMarkets.
Prices and availability vary by location. Use code MEADOWLARK for 5% off your first bulk order.
Frequently Asked Questions
How many cubic yards of topsoil do I need?+
Use the formula: Length (ft) × Width (ft) × Depth (in) ÷ 324 = Cubic Yards. A 1,000 sq ft lawn at 4 inches deep needs 12.3 cubic yards. A 4×8 ft raised bed at 10 inches deep needs about 1 cubic yard. The calculator shows geometric volume; if you need a specific finished depth after settling or grading, allow for site conditions and supplier guidance rather than assuming one universal percentage.
How much does a cubic yard of topsoil weigh?+
A cubic yard of topsoil typically weighs between 1,800–2,400 lbs (0.9–1.2 tons), depending on moisture. Dry topsoil averages about 1.08 tons per cubic yard.
How much does topsoil cost?+
Bulk topsoil costs roughly $20–$55 per cubic yard, depending on quality and location. Screened topsoil is roughly $30–$50 per cubic yard in current 2026 supplier examples, while garden and premium blends can cost more.
How deep should topsoil be for a new lawn?+
For establishing good-quality turf, Penn State Extension recommends roughly 4–6 inches of good-quality topsoil at firmed or settled depth. For broader landscaping and planting, USDA NRCS says at least 6 inches of topsoil is preferable for most plants. Existing thin lawns can benefit from 1–2 inches of top-dressing, applied in thin layers.
What's the difference between topsoil and garden soil?+
Topsoil is the uppermost layer of natural soil, usually the top 4–12 inches. Garden soil is topsoil blended with compost and other amendments for improved growth in beds and containers.
Common Topsoil Projects
TopsoilGuides & Resources
Related Calculators
Laying sod on your new topsoil?
Sod Calculator
Filling raised garden beds?
Raised Bed Soil Calculator
Need mulch for over the topsoil?
Mulch Calculator
Raising grade with fill before topsoil?
Fill Dirt Calculator
Need to calculate materials for your project? Jump back to the calculator ↑