Square Feet to Cubic Yards Calculator

Turn an area in square feet and a depth into cubic yards — the quick way to order material when you already know the square footage.

ft²

Cubic yards

4.63 yd³

  • Cubic feet125 ft³
  • One cubic yard covers108 ft² at this depth

Estimates only. Round up when you order, and confirm structural details with your local building code.

How to use it

  1. Enter the area in square feet.
  2. Enter the depth.

The formula

Cubic yards = square feet × depth (ft) ÷ 27

Worked example

Area500 ft²
Depth3 in

Result

Cubic yards4.63 yd³
Cubic feet125 ft³
One cubic yard covers108 ft² at this depth

Tips before you order

  • Shortcut: at 3 in depth, divide square feet by 108; at 4 in, divide by 81.

Questions

How many cubic yards is 1,000 square feet at 3 inches?

9.26 yd³.