Square Footage Calculator
Enter the length and width of a space in feet, inches, or meters to get its area in square feet, square yards, and square meters. Use the quantity field to add several identical spaces.
Area
120 sq ft
- Square feet
- 120 sq ft
- Square yards
- 13.33 sq yd
- Square meters
- 11.15 m²
- Per space
- 120 sq ft
Planning note
This measures a rectangular space. For an L-shaped room, split it into rectangles and add the results, or use the flooring calculator which handles waste.
How this calculator works
The calculator converts both measurements to feet, multiplies them, and then converts the result into square yards and square meters.
square feet = length (ft) × width (ft) × number of spaces
square yards = square feet ÷ 9
square meters = square feet × 0.09290304Assumptions
- The space is rectangular. Split irregular rooms into rectangles and add the results.
- Inches are converted to feet by dividing by 12; meters by multiplying by 3.28084.
- The result is the area only and does not include a waste allowance.
Worked example
A room that is 12 ft by 10 ft has an area of 120 square feet. That is 13.33 square yards and 11.15 square meters.
Frequently asked questions
- How do I calculate square footage?
- Measure the length and width of the space in the same unit, then multiply them together. For a room that is 12 ft by 10 ft, the area is 120 square feet.
- How many square feet is a 12x12 room?
- A 12 ft by 12 ft room is 144 square feet. If you are ordering flooring, add a waste allowance and check the coverage printed on the carton.
- How do I convert inches to square feet?
- Convert each measurement to feet first by dividing by 12, then multiply the two results. A surface that is 120 in by 60 in is 10 ft by 5 ft, or 50 square feet.
- How many square feet are in a square yard?
- One square yard is 9 square feet. Divide square feet by 9 to get square yards, which is useful for carpet and some landscaping materials.
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