Convert a square-foot area to cubic yards by adding depth, with results in cubic feet, cubic metres, and tons for material ordering.
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Area to Volume Conversion
A square feet to cubic yards calculator converts a flat area and a depth measurement into the cubic yards needed for bulk material orders. It is the standard way to figure out how much concrete, gravel, mulch, or soil to order for a construction or landscaping project.
First convert the area and depth to cubic feet by multiplying the square footage by the depth in feet. Then divide by 27 to convert cubic feet to cubic yards.
If the depth is given in inches, divide by 12 before multiplying by the square footage. The result in cubic yards can be rounded up to match supplier delivery increments.
Cubic yards = (Square feet x Depth in feet) / 27
Multiply area by depth in feet, then divide by 27 to convert to cubic yards.
Add 5 to 10 percent to the calculated volume to account for compaction, uneven surfaces, and spillage. Most suppliers deliver in full or half cubic yard increments, so round up to avoid shortfalls that require a second delivery.
Frequently asked questions
One cubic yard is 3 feet x 3 feet x 3 feet, which equals 27 cubic feet. Dividing cubic feet by 27 converts to cubic yards.
Yes. Most suppliers deliver in full or half cubic yard increments. Adding a waste allowance and rounding up helps avoid a shortfall.
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