Square Footage Calculator

Calculate the total area of one or more same-size rectangular spaces.

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What is the area ofbyfeet forspace?

For irregular layouts, split the space into rectangles, calculate each section and add the areas.

Total square footage
Dimensions
Square yards
Square meters
Area / space
Total perimeter

How square footage is calculated

For a rectangle, multiply length by width. If you enter multiple same-size spaces, the area is multiplied by the quantity. Meter dimensions are converted to square feet for the primary result.

Example: 12 ft × 10 ftOne rectangular space is 120 square feet. Two identical spaces total 240 square feet.

Rooms, floors and material planning

Square footage is useful for flooring, paint coverage estimates, room planning and material takeoffs. Material purchases often need an additional waste allowance that depends on the product and installation pattern.

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Common questions

How do I calculate an irregular room?

Divide the layout into rectangles, calculate each rectangle separately and add the areas.

How many square feet are in a square yard?

There are 9 square feet in one square yard.

Does this add flooring waste?

No. The result is geometric area only. Add the waste percentage recommended for your material and installation pattern.