Square foot

The square foot (plural square feet; abbreviated sq. ft, sf, or ft2; also denoted by '2) is an imperial unit and U.S. customary unit (non-SI, non-metric) of area, used mainly in the United States and partially in Canada, the United Kingdom, Bangladesh, India, Nepal, Pakistan, Ghana, Liberia, Malaysia, Myanmar, Singapore and Hong Kong.[citation needed] It is defined as the area of a square with sides of 1 foot.

Comparison of 1 square foot with some Imperial and metric units of area

Although the pluralisation is regular in the noun form, when used as an adjective, the singular is preferred. So, a flat measuring 700 square feet could be described as a 700 square-foot flat. This corresponds to common linguistic usage of foot.

Anyone searching for an apartment, buying a house, or preparing to acquire office space must get very used to this form of measurement.[1] Dimensions are generally taken with a laser device, the latest in a long line of tools used to gauge the size of apartments[2] or other spaces. Real estate agents often measure straight corner-to-corner, then deduct non-heated spaces, and add heated spaces whose footprints exceed the end-to-end measurement.[3]


1 square foot is equivalent to:

  • 144sq in.

square inches (sq in)

  • 19 square yard (sq yd)
  • ≈0.09290304 square meters (symbol: m2)

1 acre is equivalent to 43,560 square feet.

1 Square foot is Detailed:

     UNIT               VALUE

Acres 0.000022956341

Hectare 0.000009290304

Square meter 0.092903040144

Square inch 144.0000002229

Square yards 0.111111106982

Square centimeter 929.0304014422

See alsoEdit


  1. ^ "How to Find the Square Feet of Your Office Space". SquareFoot Blog. 2020-01-06. Retrieved 2020-01-14.
  2. ^ Santora, Marc (2010-12-17). "The Elusive Measure Known as the Square Foot". The New York Times. ISSN 0362-4331. Retrieved 2020-01-14.
  3. ^ "Square Foot Calculator | How to Measure Square Feet". Home Improvement Tips & Advice from HomeAdvisor. 2016-01-04. Retrieved 2020-01-14.