Cubic Yard Calculator
Turn a rectangular volume into cubic yards — the unit most landscape and concrete suppliers sell. Click any i for detail.
Volume
Length
i
Length
First horizontal dimension. |
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|---|---|
Width
i
Width
Second horizontal dimension. |
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Depth / height
i
Depth
Thickness or height in the same unit. |
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Unit
i
Unit
All three dimensions use this unit. |
How to use this calculator
- Pick feet, inches, or yards.
- Enter length, width, and depth in that unit.
- Read cubic yards and cubic feet.
- Add waste when ordering from a supplier.
Results explained
Cubic yards are cubic feet ÷ 27. Depth of 6 inches in feet is 0.5.
Quick reference: volume
Supplier-friendly conversions.
| Item | Detail |
|---|---|
| 1 cubic yard | 27 cubic feet |
| 1 cubic yard | ≈ 0.765 m³ |
| 4 in slab, 100 sq ft | ≈ 1.23 yd³ |
| 3 in mulch, 100 sq ft | ≈ 0.93 yd³ |
Concrete plants often sell in 0.25 or 0.5 yd³ increments.
How the estimate is built
cu ft = L × W × D (in feet). cu yd = cu ft ÷ 27.
Example scenario
10×10 ft × 6 in (0.5 ft) = 50 ft³ = 1.85 yd³.
FAQ
Concrete vs mulch?
Same volume math. Density (tons) differs — see the asphalt calculator for tons.
Circular beds?
Area ≈ πr², then × depth. This page is rectangular only.
Do I need extra?
Yes for waste, over-excavation, and compaction. Ask your supplier.