Square Feet to Cubic Yards Calculator
Convert square feet to cubic yards at a depth, or cubic yards back to the square feet they cover.
Change the values and press Calculate to work out your own figures.
Area and depth
Enter the area and its depth.
Show the working
- volume = area × depth
Cubic yards to square feet
Enter the volume and the depth.
Show the working
- area = volume ÷ depth
How to use it
Enter the area and its depth. Enter the volume and the depth.
Lengths can be decimals, fractions or tape entries such as 12' 6 1/2" (in feet or inches). Prices are optional.
Key facts
cubic yards = square feet × depth (ft) ÷ 27 square feet = cubic yards × 27 ÷ depth (ft)
Coverage
One cubic yard covers 324 sq ft at 1 inch deep, 108 at 3 inches and 54 at 6 inches.
Questions
How many cubic yards for 324 sq ft at 3 inches?
3 cubic yards.
How much does a cubic yard cover at 6 inches?
54 square feet.
Formulas
cubic yards = square feet × depth (ft) ÷ 27 square feet = cubic yards × 27 ÷ depth (ft)
Sources
Limitations
- Material densities are typical values (the midpoint of the commonly published range); real loads vary with moisture, grading and compaction, so check with your supplier or type in their density.
- Tank results are the geometric volume; real tanks have wall thickness and fittings.