To calculate square feet (sq ft), measure the length and the width of the area in feet, then multiply these two numbers together. The formula is:
Area (sq ft)=Length (ft)×Width (ft)\text{Area (sq ft)}=\text{Length (ft)}\times \text{Width (ft)}Area (sq ft)=Length (ft)×Width (ft)
For example, if a room is 12 feet long and 10 feet wide, the square footage is 12×10=12012\times 10=12012×10=120 sq ft. If the shape is not a perfect rectangle or square, divide the area into rectangular sections, calculate each section's square footage separately, then add them together for the total square footage. If measurements are in feet and inches, convert the inches to feet by dividing the inches by 12 and adding that to the feet before multiplying. This method applies to calculating flooring, walls, or any flat surface where you need to know area in square feet.
