Math and Arithmetic
Geometry
Area
Volume

# One cubic foot equals how many square feet?

Cubic foot is a measure of volume. Square foot is a measure of area. You can't compare the two quantities because they have different dimensions.

In Theoryx cubic feet divided by 1 square foot equals 1 foot ( xfff/ff=xf ), providing the answer:

There are 1 foot square feet in a cubic foot.

x cubic feet is also x square feet times 1 (linear) foot ( xfff=(xff)f ), which doesn't answer the question as phrased, but expresses the relationship between square and cubic feet in a different way.

Theory Into PracticeIt is just a matter of semantics to say "a cubic foot does not equal any number of square feet" if you've been asked for the cubic footage of a room by an air conditioner installer, and you've measured off the square footage, but you don't know how to get to that elusive cubic footage the installer asked for!

Applying the theory above, all you have do is multiply the area of the floor that you already determined by one more dimension---the height of the ceiling---and change the unit you specify for your result from square feet to cubic feet.

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