Find the right soil volume for lawn repair, raised beds, and landscaping so you can order the right number of cubic yards, pounds, or bags the first time.
Results are estimates. Consider ordering 10-15% extra to account for compaction and settling.
You only need two measurements to get a solid estimate. Start with the coverage area, then enter the soil depth you want to add.
Measure the total coverage area in square feet, square yards, square inches, or square meters. For simple spaces, multiply length by width before you enter the number.
Add the thickness of the new soil layer. Many lawn projects use 0.5 to 3 inches, while garden beds and raised beds often need 6 to 12 inches.
The tool converts your measurements into cubic yards, cubic feet, estimated tons, pounds, and 2-cubic-foot bag counts so you can compare supplier quotes quickly.
Most real jobs need a little extra for settling, spillage, and uneven ground. Rounding up by about 10% helps you avoid a second trip or partial delivery fee.
If your space is not a perfect rectangle, split it into smaller sections and calculate the area of each one first. Add those areas together, then enter the total into the calculator. This method is more accurate than estimating from the widest and longest points.
You can also use the result as a buying checklist. Cubic yards are usually best for bulk delivery. Cubic feet and bag counts are more helpful when you shop at a home center. Either way, the goal is the same: turn your coverage area and soil depth into a reliable soil volume before you spend money.
Cubic yards are the number most bulk suppliers use. If you plan to order soil by truck, this is usually the figure to share when you request pricing. One cubic yard is 27 cubic feet. When your result falls between whole numbers, rounding up is often the safer choice because topsoil settles after it is spread and raked out.
Cubic feet are useful when you buy bagged soil. A lot of stores sell 2-cubic-foot bags, so this figure lets you convert the soil volume into a realistic bag count. It is also a good number for raised beds, planters, and small projects where you picture the space in feet rather than in cubic yards.
Weight helps with trailer limits, wheelbarrow planning, and delivery decisions. This calculator uses 1.5 tons per cubic yard as a practical average. Real soil density changes with moisture, compaction, and blend. Wet screened topsoil can be much heavier than dry soil, so use the result as a planning estimate instead of an exact shipping weight.
The calculator assumes 2-cubic-foot bags for the bag estimate. Bagged soil is easy to carry and store, but it usually costs much more per cubic foot than bulk delivery. Once you need close to 1 cubic yard, a bulk order often becomes the better value.
If you want to calculate topsoil manually, the process is simple. First, find your coverage area. Second, convert your depth into feet. Third, multiply area by depth to get soil volume in cubic feet. Last, divide by 27 to convert cubic feet into cubic yards.
Volume in cubic feet = area in square feet × depth in feet
Volume in cubic yards = cubic feet ÷ 27
Say you are building a vegetable garden that measures 20 feet by 10 feet, and you want to add 6 inches of enriched topsoil.
In this case, you would likely order 4 cubic yards for bulk delivery or 50 to 55 bags if you need bagged soil. The extra helps cover compaction, raking loss, and low spots that appear once you start spreading the material.
One cubic yard covers about 324 square feet at 1 inch deep, 162 square feet at 2 inches deep, 108 square feet at 3 inches deep, 81 square feet at 4 inches deep, and 54 square feet at 6 inches deep. That rule makes it easier to sanity-check your result before you place an order.
If your lawn covers 1,000 square feet and you want a light topdressing layer of 0.5 inches, you need about 41.7 cubic feet or 1.54 cubic yards. This is a classic use case for screened topsoil because you want a fine texture that spreads easily. Many homeowners over-order here because they think in area only, not in depth. A thin layer adds up fast across a big coverage area.
A 1,000-square-foot lawn at 3 inches deep needs 250 cubic feet, or about 9.26 cubic yards. If you are preparing ground for seed or sod, this deeper layer gives roots more room and helps with drainage. Because that amount is heavy, bulk delivery is almost always the better option. At 1.5 tons per cubic yard, you are dealing with nearly 14 tons of material.
A 4-foot by 8-foot raised bed filled to 12 inches deep needs 32 cubic feet, or about 1.19 cubic yards. That equals 16 bags if each bag holds 2 cubic feet. Raised beds are often better with a blend instead of straight topsoil. Many gardeners use screened topsoil plus compost to improve drainage and organic matter without losing structure.
Suppose you refresh a 12-foot by 15-foot garden bed with a new 4-inch layer. The area is 180 square feet. Four inches is 0.333 feet. Multiply them and you get roughly 60 cubic feet, or 2.22 cubic yards. This type of project often benefits from a 10% allowance because raking, mixing, and settling can reduce the final depth.
If a low section measures 10 feet by 10 feet and averages 2 inches deep, you need about 16.7 cubic feet, or 0.62 cubic yards. For yard leveling, it is smart to fill in stages because soil compaction can change the finished height. Spread part of the soil, water it, and check the grade before you add more.
One of the biggest content gaps on the original page was practical depth guidance. The amount of topsoil you need depends less on the project name and more on the finished soil depth you want after spreading and settling. Use these targets as planning ranges, then adjust for local conditions and plant needs.
| Project | Typical Depth | What to Know |
|---|---|---|
| Lawn topdressing | 0.5 to 1 inch | Best for smoothing small bumps and improving turf without burying the grass. |
| New lawn from seed | 4 to 6 inches | Gives grass roots room to establish in a healthier soil profile. |
| Sod installation | 2 to 4 inches | Usually enough if the existing soil drains well and only needs improvement. |
| Flower beds | 6 to 8 inches | A deeper layer supports roots and helps retain moisture. |
| Vegetable gardens | 6 to 12 inches | Root crops and heavy feeders often benefit from more depth plus compost. |
| Raised beds | 10 to 12 inches | Fill the usable depth and plan for a blended soil mix when possible. |
These ranges also help you catch errors before you order. If your result looks too high, check whether you entered inches as feet or measured the wrong coverage area. Small input mistakes can double or triple your soil volume. That is why a quick depth check can save more money than any coupon or delivery discount.
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It depends on the depth. At 1 inch, 1,000 square feet needs about 3.09 cubic yards. At 3 inches, it needs about 9.26 cubic yards. At 6 inches, it needs about 18.52 cubic yards. Depth is the factor that changes the result the most.
One cubic yard equals 27 cubic feet. That works out to about 14 bags at 2 cubic feet each, 18 bags at 1.5 cubic feet each, or 36 bags at 0.75 cubic feet each. Always check the package size before you compare prices.
For a new lawn, 4 to 6 inches of screened topsoil is a common target. If you are just topdressing or leveling minor low spots, 0.5 to 1 inch is often enough. New seed and sod projects usually need more depth than repair work.
A cubic yard of topsoil often weighs about 2,400 to 3,000 pounds, but the exact number changes with moisture and soil blend. This calculator uses 1.5 tons per cubic yard, or 3,000 pounds, as a practical estimate for planning.
Bagged soil is convenient for very small projects, narrow access points, and quick repairs. Bulk delivery is usually cheaper per cubic foot once you need around 1 cubic yard or more. Use bags for convenience and bulk for value.
Yes. Raised beds are a great match for this tool because you can measure the exact coverage area and full soil depth. Many gardeners then blend the topsoil with compost to improve organic matter and drainage.
Break the space into simple shapes such as rectangles, triangles, or circles. Calculate each area separately, add them together, and then apply the same soil depth to the total. That method is more accurate than guessing the whole shape at once.
A 10% safety margin is a smart default for most jobs. Use 5% for flat, simple spaces and 10% to 15% for uneven ground, lawn leveling, or projects where the soil may compact after watering and foot traffic.
Screened topsoil mixed with compost is usually better than plain fill dirt for vegetable beds. The blend improves texture, drainage, and nutrient content while still giving roots enough support for healthy growth.