How do you change feet to square feet?

Answer 1

You don't. It would be like changing your age from years to gallons.

"Feet" is a unit of length or distance, as of a piece of rope or a trip to the store.

"Square feet" is a unit of surface area or coverage, as of a rug or a piece of land.

The two units are used to measure completely different quantities. They have different

physical dimensions, and neither one can be converted into the other one.