Match volume to the material
Confirm whether the supplier sells loose or compacted cubic yards and whether a waste or settlement allowance is appropriate.
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How the calculation works
We use No density required for geometric volume.
Formula: length × width × depth in feet ÷ 27
Worked example
A 12 × 10 ft area at 4 in depth is about 1.63 cubic yards with 10% waste, rounded up to 1.7 cubic yards for ordering.
Describe the geometric volume
Measure each rectangular area and convert depth to feet; calculate irregular or changing-depth areas separately.
Frequently asked questions
How many cubic feet are in a cubic yard?
One cubic yard is exactly 27 cubic feet.
Can cubic yards be converted to tons without density?
No. Weight conversion requires the material's bulk density.
Sources and assumptions
Exact geometric conversion: 27 cubic feet equals one cubic yard.
Last reviewed: August 14, 2026. Read the methodology and sources.