Square Feet to/from Cubic Yards
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How do I convert square feet to cubic yards?
Let's start off by discussing the use of the word 'convert'. Due to the fact that the square foot is a unit of area, with two dimensions, and the cubic yard is a unit of volume, with three dimensions, this isn't a conversion - it's a calculation. To calculate cubic yards from a square feet figure, we need to include an extra dimension - height/depth.
It's important that the height/depth dimension is in the same unit as the others. In this case, it should be a measurement in feet. We have an additional calculator, should you wish to calculate cubic feet from square feet.
Note: these formulae assume all measurements are in feet. We divide by 27 because there are 27 cubic feet in a cubic yard.
Formula for cubic yards
Cubic yards = [width × length × height in ft] ÷ 27
Square feet to cubic yards
Cubic yards = [square feet × height in ft] ÷ 27
How to calculate cubic yards
- Calculate your square feet area: Width × length
- Calculate the volume: Multiply your area figure by the depth/height. This gives you a volume figure in cubic feet
- Convert to cubic yards: Divide your cubic feet figure by 27. You now have your answer.
How do I convert cubic yards to square feet?
As mentioned above, this is a calculation and not a conversion because a cubic yard is a unit of volume (with three dimensions) and a square foot is a unit of area (with two dimensions). In order to carry out this calculation, we need to include an extra dimension (height/depth, for example). Once you have this extra measurement, you can incorporate it into the calculations below.
Note: these formulae assume all measurements are in feet:
Formula for square feet
Square feet = width (ft) × length (ft)
Cubic yards to square feet
Square feet = (cubic yards × 27) ÷ height (ft)
Of course, if you use our calculator at the top of the page, it'll work these calculations out for you.
If you have any problems using this square feet and cubic yards calculator, please contact me.