Cubic Yards To Square Feet Converter Calculator

By: Patrick Myers Patrick Myers is the CEO and Founder of Calculator Academy. He has over eight years of experience developing online calculators and holds a B.S. in Mechanical Engineering. His work focuses on formula implementation, calculator accuracy, unit conversions, and creating practical tools that are easy to use.

Last Updated: October 17, 2026

Calculate the square footage a known volume of cubic yards covers at any depth, and convert square feet back into the cubic yards you need to order.

Uniform layer geometry. Depth is required to relate volume to area; no settling or waste allowance is included.

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Cubic Yards to Square Feet Formula

Cubic yards measure volume and square feet measure area, so you cannot convert between them without a depth. Once you know how deep the material sits, use these formulas:

SF = CY * 27 / D

To go the other way, from an area to the volume needed:

CY = SF * D / 27
  • SF = area in square feet
  • CY = volume in cubic yards
  • D = depth or thickness in feet
  • 27 = number of cubic feet in one cubic yard

The converter works in three modes. Solving for square feet takes a known volume in cubic yards and the depth to which it is spread, then returns the area it covers. Solving for cubic yards takes the area you want to fill and the depth, then returns the volume to order. Solving for depth takes a known volume and a known area, then returns how thick the layer will be. Inputs in inches, centimeters, meters, cubic feet, or square yards are converted to feet before the formula runs.

Square Feet Covered by One Cubic Yard

One cubic yard equals 27 cubic feet, so the area it covers depends entirely on depth. Thinner layers stretch further.

DepthSquare feet per cubic yard
1 inch324 sq ft
2 inches162 sq ft
3 inches108 sq ft
4 inches81 sq ft
6 inches54 sq ft
12 inches27 sq ft

Common Material Depths

The following depths are illustrative examples, not structural or landscaping specifications. Confirm the appropriate installed depth with the project designer or material supplier.

MaterialTypical depth
Mulch2 to 3 inches
Gravel2 to 4 inches
Topsoil3 to 6 inches
Sand base1 to 2 inches
Concrete slab4 inches

Example Problems

Example 1: cubic yards to square feet. You have 5 cubic yards of mulch and plan to spread it 3 inches deep. Convert depth to feet: 3 / 12 = 0.25 feet. Then SF = 5 * 27 / 0.25 = 540 square feet.

Example 2: square feet to cubic yards. You want to cover 200 square feet with topsoil at a depth of 4 inches. Convert depth: 4 / 12 = one-third of a foot. Then CY = 200 * (4/12) / 27 = approximately 2.47 cubic yards before any purchasing allowance.

FAQ

Can you convert cubic yards to square feet directly? No. Cubic yards measure volume and square feet measure area. You need the depth or thickness of the material to connect the two. With a positive uniform depth, geometry determines the area; real settling, uneven ground and measurement uncertainty can change actual coverage.

How many square feet does one cubic yard cover? It depends on depth. At 2 inches a cubic yard covers 162 square feet, at 3 inches it covers 108 square feet, and at 6 inches it covers 54 square feet.

Does the material type change the math? No. The conversion is purely geometric, so it is the same for mulch, gravel, soil, sand, or concrete. Material only matters when you add an overage allowance for settling or waste, which you would do separately.

Cubic Yards To Square Feet Converter Calculator screenshot