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The square foot (pl. square feet; abbreviated sq ft, sf, or ft2; also denoted by '2 and ⏍) 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.
| square foot | |
|---|---|
| Unit system | Imperial, United States customary units |
| Unit of | area |
| Symbol | ft2, sq ft |
| Conversions | |
| 1 ft2 in ... | ... is equal to ... |
| Imperial/US |
|
| SI units |
|
Although the pluralization is regular in the noun form, when used as an adjective, the singular is preferred. So, an apartment measuring 700 square feet could be described as a 700 square-foot apartment.[citation needed] This corresponds to common linguistic usage of foot.
The square foot unit is commonly used in real estate.[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 conversion to other units of area:
- 1 square foot (ft2) = 0.0000000358701 square miles (mi2)
- 1 square foot (ft2) = 0.000022956341 acres (ac)
- 1 square foot (ft2) = 0.111111111111 square yards (yd2)
- 1 square foot (ft2) = 144 square inches (in2)
- 1 square foot (ft2) = 144,000,000,000,000 square microinches (μin2)
- 1 square foot (ft2) = 0.00000009290304 square kilometers (km2)
- 1 square foot (ft2) = 0.000009290304 hectare (ha)
- 1 square foot (ft2) = 0.09290304 square meters (m2)
- 1 square foot (ft2) = 9.290304 square decimeters (dm2) (uncommon)
- 1 square foot (ft2) = 929.0304 square centimeters (cm2)
- 1 square foot (ft2) = 92,903.04 square millimeters (mm2)
- 1 square foot (ft2) = 92,903,040,000 square micrometers (μm2)
See also
edit- Area (geometry)
- Conversion of units
- Cubic foot
- Metrication in Canada
- Miscellaneous Technical (Unicode) for a list of miscellaneous technical symbols and fonts which support the square foot symbol ⟨⏍⟩
- Orders of magnitude (area)
- Square (algebra), square root
References
edit- ^ "How to Find the Square Feet of Your Office Space". SquareFoot Blog. 2020-01-06. Retrieved 2020-01-14.
- ^ Santora, Marc (2010-12-17). "The Elusive Measure Known as the Square Foot". The New York Times. ISSN 0362-4331. Retrieved 2020-01-14.
- ^ "Square Foot Calculator | How to Measure Square Feet". Home Improvement Tips & Advice from HomeAdvisor. 2016-01-04. Retrieved 2020-01-14.