How it works
square feet = length × widthcost = square feet × price per sq ft
- length
- one side in feet
- width
- the side next to it in feet
- price
- cost per square foot
For an L-shaped or irregular space, split it into rectangles, work out each, and add the results.
Frequently asked questions
How do I calculate square footage?
Multiply the length by the width, both in feet. A 12 by 10 area is 120 square feet.
How much flooring do I need for 120 sq ft?
120 sq ft plus a waste margin, usually 5 to 10 percent for cuts.
What is the cost of 120 sq ft at $5?
$600, from 120 × 5.
How do I find square footage of a whole house?
Add the square footage of each room together.