Cubic Yard Calculator
Free online cubic yard calculator for concrete, soil, mulch, gravel, and more. Enter your dimensions to get instant cubic yard results with material weight and cost estimates.
What Is a Cubic Yard?
A cubic yard is a unit of volume equal to a cube that is 3 feet wide, 3 feet long, and 3 feet tall — or 27 cubic feet. It's the standard unit of measurement for construction and landscaping materials like concrete, soil, mulch, and gravel in the United States.
Understanding cubic yards is essential for ordering materials correctly. Order too little and your project stalls; order too much and you waste money. Our cubic yard calculator helps you get it right the first time by converting your project dimensions into the exact number of cubic yards needed.
Material Weight Reference
Different materials weigh different amounts per cubic yard. This is important for estimating trucking costs and ensuring your project can support the weight.
How to Calculate Cubic Yards
Rectangle / Square
Example: A 10 ft × 10 ft area, 6 inches deep = (10 × 10 × 0.5) ÷ 27 = 1.85 cubic yards
Cylinder (Round)
Example: A 6 ft diameter circle, 4 inches deep = (π × 3² × 0.333) ÷ 27 = 0.35 cubic yards
Triangle (Prism)
Example: A triangular area with 10 ft base, 6 ft height, 6 inches deep = (0.5 × 10 × 6 × 0.5) ÷ 27 = 0.56 cubic yards
Cubic Yard Conversion Table
| Unit | 1 Cubic Yard = | 1 Cubic Foot = |
|---|---|---|
| Cubic Feet | 27 cu ft | 1 cu ft |
| Cubic Inches | 46,656 cu in | 1,728 cu in |
| Cubic Meters | 0.765 cu m | 0.0283 cu m |
| Liters | 764.6 L | 28.32 L |
| Gallons (US) | 202 gal | 7.48 gal |