Convert dimensions into cubic yards for ordering concrete, gravel, mulch, topsoil, sand, and fill dirt. Enter measurements in feet, inches, yards, or meters.
Conversion tool for estimating purposes. Confirm quantities with your supplier.
Filling a 10×20 foot area at 4 inches deep? That's 66.7 cubic feet, or 2.47 cubic yards. Ordering mulch, gravel, or topsoil by the cubic yard is how every landscape supply company sells it — this calculator converts your measurements into the unit they use.
| Project | Dimensions | Cubic Yards |
|---|---|---|
| Garden bed mulch | 10×20 ft, 3" deep | 1.85 |
| Patio gravel base | 12×16 ft, 4" deep | 2.37 |
| Driveway gravel | 10×40 ft, 4" deep | 4.94 |
| Concrete slab | 10×10 ft, 4" deep | 1.23 |
| Raised bed fill | 4×8 ft, 12" deep | 1.19 |
| French drain gravel | 1×50 ft, 12" deep | 1.85 |
27 cubic feet. A cubic yard is 3 feet × 3 feet × 3 feet = 27 cubic feet.
Divide cubic feet by 27. For example, 81 cubic feet ÷ 27 = 3 cubic yards.
About 9 standard wheelbarrow loads (at 3 cubic feet per load) or 14 smaller loads (at 2 cubic feet).
It depends on the material. Topsoil: ~2,200 lbs. Mulch: ~400–800 lbs. Gravel: ~2,700 lbs. Concrete: ~4,050 lbs. Sand: ~2,700 lbs.
Multiply length × width × depth (all in inches), then divide by 46,656 to get cubic yards. Or convert inches to feet first by dividing each measurement by 12, then multiply and divide by 27.
Typical Results
💡 Most suppliers have a 1-yard delivery minimum. For less than 1 yard, bags may be more practical.