Cubic yards--
Yards with waste--
Estimated cost--
Topsoil Calculator for Lawn and Garden Projects
Estimate topsoil volume from area and depth before ordering bulk soil or bags.
Updated May 2026No signup requiredBuilt for mobile
Formula or method
Cubic yards = length x width x depth(ft) / 27.
Add waste for settling, uneven ground, and supplier rounding.
Worked examples
Lawn repair example
A 20 by 10 foot area at 3 inches deep needs about 1.85 cubic yards before adding reserve for settling and supplier rounding.
Raised bed reserve
Increase the reserve when soil will settle, when low spots are uneven, or when the supplier sells only whole-yard delivery amounts.
Practical use cases
- Estimating cubic yards before ordering bulk topsoil.
- Comparing bagged soil with a small delivered load.
- Planning lawn leveling, garden beds, sod preparation, and low-spot repairs.
- Checking whether delivery access and dump location are practical.
- Budgeting soil cost before renting equipment or scheduling help.
Common mistakes
- Entering inches as feet or forgetting to convert depth.
- Ignoring compaction, settling, grading, and low spots.
- Ordering the wrong blend for lawns, beds, fill, or compost needs.
- Forgetting driveway access, dump location, wheelbarrow distance, and weather.
FAQ
Topsoil Calculator questions
How accurate is this calculator?
It is a planning estimate based on the values you enter. Real-world conditions can change the result.
Why do results vary?
Overhead, rounding, equipment limits, supplier units, network conditions, and user behavior can all affect the final number.
Should I round up?
Round conservatively when running short would interrupt a project, backup, stream, trip, or outage plan.
What should I do next?
Use the result card and checklist, then compare related calculators or guides before making a final decision.
Does this replace official documentation?
No. Use manufacturer documentation, platform guidance, or professional advice for critical decisions.
How to use this estimate
The topsoil calculator estimates cubic yards, cubic feet, bags, or truckload quantities from area and depth. It is useful for garden beds, lawn leveling, raised areas, sod preparation, and filling low spots before ordering bulk soil or bags.
Inputs that matter most
- Area length and width, total square footage, or separate sections.
- Desired depth in inches, converted into feet for volume math.
- Compaction and settling reserve based on soil type and project purpose.
- Supplier unit size, such as cubic yards, bags, or truckload limits.
Formula and method
Topsoil volume = area x depth. Because depth is often entered in inches, convert inches to feet before multiplying. Then convert cubic feet to cubic yards by dividing by 27, and round for delivery or bag sizes.
Topsoil results can look small when depth is shallow, but delivery minimums and compaction matter. Compare the number with the supplier's truck capacity, access limits, and where the pile can be dumped.
Worked example
Example: a 20 by 30 foot lawn area needs 2 inches of topsoil. The area is 600 square feet and the depth is 0.167 feet. Volume is about 100 cubic feet, or 3.7 cubic yards. Adding a 10 percent reserve for settling and spreading points to about 4.1 cubic yards before rounding to supplier delivery options.
Common planning mistakes
- Entering inches as feet or forgetting to convert depth.
- Ignoring compaction, settling, grading, and low spots.
- Ordering screened garden soil when fill or compost blend is actually needed.
- Forgetting driveway access, dump location, wheelbarrow distance, and weather.
Safety and disclaimer note
Topsoil estimates are planning aids, not landscaping, drainage, engineering, or agronomy advice. Confirm soil blend, compaction, drainage, grading, local rules, and delivery access with a supplier, landscaper, contractor, or local extension guidance when the project affects structures or water flow.
FAQ
Practical questions
How deep should topsoil be?
The depth depends on the project. Lawn topdressing may be shallow, while new beds or grading repairs may need more.
Should I add a compaction reserve?
Yes for many projects. Soil can settle during spreading, watering, and use.
How many cubic feet are in a cubic yard?
There are 27 cubic feet in one cubic yard.
Is topsoil the same as compost?
No. Compost, screened topsoil, garden mix, fill, and blends serve different purposes.
Can this estimate fix drainage issues?
No. Drainage and grading problems may need professional review so water is directed safely.