Cubic yard calculator
Any dimensions into cubic yards, fast.
Inches are fine — 8 in converts itself
Volume
Enter the dimensions to see the volume.
3 more values:
- Length
- Width
- Depth
- Cubic feet
- —
- Cubic meters
- —
- Plan area
- —
How this is calculated
Every mode reduces the shape to a plan area and a depth, works in cubic feet, and converts once at the end. A cubic yard is exactly 27 cubic feet — three feet cubed — so no rounding enters before the result.
Each dimension converts from its own unit independently. Entering 60 ft × 40 ft × 8 in gives the same answer as 60 × 40 × 0.667 ft, and the working shows the conversion so it can be checked by hand.
- Rectangular
length × width × depth
The common case: a pad, a pond, a footing.
- Area + depth
area × depth
For a footprint already taken off. Assumes uniform depth across the whole area.
- Trench
((bottom width + top width) ÷ 2) × depth × length
A trapezoidal section. Leave top width blank for vertical walls and it becomes bottom width × depth × length.
- Cubic yards
cubic feet ÷ 27
Exact by definition, not an approximation.
- Cubic meters
cubic feet × 0.0283168…
Derived from the exact definition of an inch as 25.4 mm, so a foot is exactly 0.3048 m.
What it does not know
- This is geometry. It measures the shape you describe, and knows nothing about the material in it.
- The result is in-place volume. It is not what fits in a truck — loose material bulks by its swell factor — and it is not what a compacted fill will measure.
- For loads, weight and hauling time, use the dirt hauling calculator, which asks for the material properties this one does not need.