Square Foot
A square foot is an imperial unit of area equal to 144 square inches or approximately 0.0929 square meters. It is the primary unit for measuring real estate floor space, room sizes, and building areas in the United States.
History
The square foot has been the standard unit for real estate measurement in the United States for centuries. House sizes, office spaces, and retail areas are almost always quoted in square feet. One square foot equals approximately 0.0929 square meters.