This question cannot be answered sensibly. A square foot is a measure of area, with dimensions [L2]. A running (or linear) foot is a measure of distance, with dimensions [L]. The two measure...
Length times width. If you have something 2 feet long by 2 feet wide it is 4 square feet.
A foot is one dimensional measurement.
A square foot is 2-dimensional and is a square unit footxfoot....
"Square feet" means coverage area, like a rug or a garden. "Feet" means a length or a distance, like a piece of rope or a trip in the car. They're different things. You can't change one into the...