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Square footage calculator

Enter the length and width in feet to get the square footage. Add each room to get the total.

Measurements in
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About this tool

Use this sq ft calculator to work out square footage for flooring, carpet, paint, tiles or a whole house. Measure each room in feet, add them up, and include extra for cutting.

How to work out the area of a room

  1. Measure the length and width. Measure each wall to wall. For an L-shaped room, split it into two rectangles and add both.
  2. Pick your units. Metres, centimetres, feet or inches. Results always show in both m² and ft².
  3. Add extra for cutting. For flooring or tiles, add about 10% so you have enough after cuts.
  4. See the cost. Type the price per square metre to see the total.

Questions people ask

How do I calculate square footage?

Multiply length by width in feet. A room 12 ft by 10 ft is 120 sq ft.

How do I convert square feet to square metres?

Divide by 10.764. 120 sq ft is about 11.15 m².

How do I measure an L-shaped room?

Split it into two rectangles, measure each, and add them as two areas.

How do I calculate square metres?

Multiply the length by the width, both in metres. A room 4 m long and 3 m wide is 4 × 3 = 12 m².

How many square feet are in a square metre?

1 m² is about 10.764 ft². To go from ft² to m², divide by 10.764.

How do I work out the area of a circle?

Choose Circle and enter the diameter. Area is π × radius², where the radius is half the diameter.

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Area calculator (square metres and square feet)

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