Cubic Yard Calculator
Convert length, width and depth into cubic yards, cubic feet and cubic meters.
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What this tool does
This all-purpose cubic yard calculator works for any bulk material — mulch, soil, gravel or concrete — by converting length, width and depth into cubic yards, cubic feet and cubic meters, with a waste allowance.
How to use the Cubic Yard Calculator
- Enter length and width.
- Enter depth.
- Enter how many identical areas you have.
- Add a waste percentage.
- Order the cubic yards shown.
Formula
yd³ = L × W × (D ÷ 12) × Q × (1 + w) ÷ 27
- L, W
- Feet
- D
- Inches
- Q
- Quantity of areas
- w
- Waste allowance
Worked example
A 20 × 10 ft area 4 inches deep with 5% extra.
Inputs
- Length20 ft
- Width10 ft
- Depth4 in
- Number of identical areas1
- Waste / extra5 %
Result
- Cubic yards2.59 cu yd
- Cubic feet70 cu ft
- Cubic meters1.982 m³
Cubic yard conversions
| Unit | Equivalent of 1 yd³ |
|---|---|
| Cubic feet | 27 |
| Cubic inches | 46,656 |
| Cubic meters | 0.7646 |
| Liters | 764.6 |
| US gallons | 201.97 |
Results explained
- Cubic yards
- Standard unit for bulk delivery.
- Cubic feet
- For bagged products.
- Cubic meters
- Metric equivalent.
Frequently asked questions
Multiply length × width × depth in feet, then divide by 27.
27 (3 ft × 3 ft × 3 ft).
Divide by 12; 4 inches = 0.333 ft.
324 ÷ depth in inches: 108 sq ft at 3 in, 81 sq ft at 4 in.
Yes. In landscaping and concrete, 'a yard' means one cubic yard.