Square feet to cubic yard calculator
Choose Known area. Cubic yards = square feet × depth in inches ÷ 324. Square feet measure area; cubic yards measure volume, so a depth is always required. Square yards and square meters are also accepted.
ONE VOLUME, SEVERAL UNITS
How to calculate cubic yards
For a rectangle, volume = length × width × depth. Convert dimensions to one unit before multiplying. With feet throughout, divide the result by 27 to obtain cubic yards. A circle or cylinder uses π × (diameter ÷ 2)² × depth, then the same unit conversion.
This yardage calculator reports cubic yards, cubic feet, cubic meters and liters. The quantity field repeats identical sections; extra material adds only the percentage you enter. The unit “yard” in these results means a cubic yard, not a linear yard.
Cubic feet to cubic yards
Choose Known volume, enter cubic feet, and read cubic yards. One cubic yard = 27 ft³. For example, 54 ft³ = 2 yd³. Reverse the conversion by entering yd³ and reading ft³.
Cubic yards to cubic meters
One cubic yard = 0.764554857984 m³. Multiply yards by this factor to get meters, or divide cubic meters by it to get yards. One cubic meter also equals 1,000 liters.
WORKED EXAMPLE
20 ft × 10 ft × 6 inches
6 inches = 0.5 ft. Volume = 100 ft³ = 3.704 yd³ = 2.832 m³. With two identical sections, measured volume doubles to 200 ft³. A 10% allowance then makes the order 220 ft³, or 8.148 yd³.
At an illustrative $27 per cubic yard plus $20 delivery, one section with no allowance costs $120.00. Use your current supplier quote; no average material price is assumed.
Cubic yard calculator for concrete, soil, gravel and mulch
The same geometry can estimate space filled by different materials. Density is unnecessary for volume, but material choice matters for weight, packing, moisture, compaction and intended use. For a finished compacted layer, use a supplier-specific loose-volume conversion rather than assuming this geometric volume is the delivered order.
Use the topsoil/dirt calculator, gravel calculator, crushed stone calculator or mulch calculator for material-specific ordering assumptions. Concrete volume here is not a mix-design, reinforcement, bag-yield or structural-safety calculation.
How many square feet does one cubic yard cover?
It depends on depth. Coverage in ft² = 27 ÷ depth in feet. At 3 inches it covers 108 ft²; at 6 inches, 54 ft². A cubic yard cannot be converted to square feet without choosing a thickness.
Can I convert cubic yards to tons?
Not without material density. Tons measure weight; cubic yards measure volume. This calculator deliberately reports volume only. Material-specific tools can estimate weight when you supply a matching bulk density.
Can I calculate a cylinder’s cubic yards?
Yes. Choose Circle, enter the cylinder diameter and use its height as the depth. The result describes a full solid cylinder; it does not subtract an inner hole.
What do I do with different-sized sections?
Calculate each section separately and sum their volume before ordering. The quantity control repeats only sections with the same dimensions. Exclude overlaps so shared areas are not counted twice.
Why does changing a unit change the input number?
The tool preserves the physical amount. Changing 20 ft to meters produces 6.096 m. Other fields keep their units, and calculations convert all active inputs internally.
Conversions and limits
Exact international foot and yard conversion factors follow NIST: 1 ft = 0.3048 m; 1 yd = 0.9144 m. Cubing the yard gives 0.764554857984 m³. Sources reviewed October 9, 2026.
All quantities are full geometric volumes. Prices cover entered volume-based material cost and delivery only; tax, labor, equipment and unentered fees are excluded. No weight, settlement or compaction factor is inferred. The drawing is a schematic; a known volume alone does not specify its shape.