One of the most common questions I am asked, is how to convert square feet to cubic feet. My answer has always been, "You can't." Since cubic feet has an extra dimension, you could fit an unlimited number of square feet into cubic feet.But then I started thinking about why someone would want to make such a conversion, and I guess it is possible in the real world, and decided to put the conversion up here. Though scientists might scoff and say that I'm not really converting square feet to cubic feet, I'm just adding the third dimension that is needed for cubic feet.