Measure the length of the area in feet
Measure the width of the area in feet
Multiply length by width
Use the formula: square feet = length × width
For irregular shapes, divide the area into smaller rectangles
Calculate the square feet of each section
Add all section square feet together
For triangles, use the formula: square feet = 0.5 × base × height
For circles, use the formula: square feet = 3.1416 × radius × radius
Convert inches to feet by dividing by 12 before calculating
Convert yards to feet by multiplying by 3 before calculating