Cubic Yard Calculator

Your details

Select the footprint shape. For irregular areas split into rectangles and add results.
The longest dimension of the rectangular area.
ft
The shorter dimension of the rectangular area.
ft
How deep or thick the material layer is. A 4-inch concrete slab is the most common residential depth.
in
Multiply the result by this many identical areas (e.g. several identical footings).
Currency
Cubic yards
1.23yd³
Cubic feet33.3ft³
Cubic metres0.944m³
Area covered100ft²
Safe order quantity (rounded up)2yd³
Cubic yards1.23
Cubic feet33.3

Your project needs about 1.23 cubic yards of material.

  • One cubic yard equals 27 cubic feet because a yard is 3 ft on each side (3 x 3 x 3 = 27). Dividing the cubic-foot volume by 27 gives cubic yards.
  • Suppliers typically sell in whole or half-yard increments, so rounding up to 2 yd³ avoids a short delivery.
  • For irregular shapes, divide the area into simpler rectangles or triangles, calculate each piece separately, then add the results.

Next stepEnable the cost estimate above to price out delivery, or the bag count to see how many bags to buy at a home centre.

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