Home & DIY
Square Footage Calculator
Turn length and width into square feet, yards and metres.
Square Footage Calculator
Area
— ft²
Square yards—
Square metres—
Estimated cost—
How to calculate square footage
Multiply the length by the width in feet to get square feet. For an L-shaped room, split it into rectangles and add their areas together. This is the same method used for flooring, painting and real estate listings.
Frequently asked questions
How do I calculate square feet?
Multiply length × width in feet. A 12 ft × 10 ft room is 120 square feet.
How many square feet in a square yard?
There are 9 square feet in one square yard (3 ft × 3 ft).
Can I use inches or metres?
This tool uses feet. To use metres, multiply the result by about 10.764 to get square feet, or convert units first with our Unit Converter.