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Square Footage Calculator

Calculate the area of a room in square feet and square metres from its length and width entered in feet or in metres.

About Square Footage Calculator

Square footage is the area of a floor or surface in square feet. For a rectangle, area = length × width. This calculator converts between systems with the exact factor 1 square foot = 0.09290304 square metres, so 1 m² is about 10.764 ft². It also shows the area in ares (1 are = 100 m²). For an L-shaped room, split it into rectangles, calculate each one, and add the results.

How to use Square Footage Calculator

  1. Fill in "Length", "Width" and "Unit".
  2. The result appears below and updates as you type.
  3. Copy the result with the copy button, or download it as a file where that is offered.

Questions about Square Footage Calculator

How do I convert square metres to square feet?

Multiply square metres by 10.764. A 20 m² room is about 215.3 ft². To go the other way, multiply square feet by 0.0929.

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