📦 Cubic Yard Calculator
When ordering construction materials like concrete, mulch or gravel, volume is almost always measured in cubic yards. This calculator quickly converts your dimensions in feet to cubic yards.
Volume in cubic feet
33 ft³
Volume in cubic yards
1.22 yd³
Calculate volume in cubic feet: 10 ft × 10 ft × 0.33 ft = 33 ft³
Convert to cubic yards (divide by 27): 33 ft³ ÷ 27 = 1.22 yd³
Formula
Cubic Yards = (Length ft × Width ft × Height ft) ÷ 27. One cubic yard = 27 cubic feet.
First calculate total volume in cubic feet by multiplying length × width × height. Then divide by 27 because one cubic yard = 27 cubic feet.
Steps
- 1Enter the length of the project (in feet).
- 2Enter the width of the project (in feet).
- 3Enter the height or depth of the project (in feet or inches).
- 4The calculator computes the total volume in cubic yards.
Typical construction project depths
| Material | Recommended depth | In feet |
|---|---|---|
| Concrete foundation | 4 inches | 0.33 |
| Driveway gravel | 2-3 inches | 0.17-0.25 |
| Garden bed mulch | 3-6 inches | 0.25-0.5 |
| Terrain fill | 6-12 inches | 0.5-1.0 |
Depths vary depending on project type and local building codes.
commonMistakes
- Entering depth in inches when calculator expects feet — 4 inches = 0.33 feet, not 4 feet!
- Not accounting for compaction — laid material compacts after placement, so order some extra.
- Getting foot-inch conversion wrong — use decimals (0.33 feet) not mixed numbers (1'4").
useCases
- Ordering exact quantities of concrete for foundation or pad projects.
- Determining mulch, gravel or fill requirements for landscaping projects.
- Estimating budget for material/delivery costs based on volume calculation.