Square foot

The square foot (Template:Plural form; 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, Canada, the United Kingdom, Bangladesh, India, Nepal, Pakistan, Ghana, Liberia, Malaysia, Myanmar, Singapore and Hong Kong.Template:Citation needed It is defined as the area of a square with sides of 1 foot.

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.Template:Citation needed This corresponds to common linguistic usage of foot.

The square foot unit is commonly used in real estate.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Dimensions are generally taken with a laser device, the latest in a long line of tools used to gauge the size of apartments<ref>Template:Cite news</ref> 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.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

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

• 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 Template:Angbr
• Orders of magnitude (area)
• Square (algebra), square root

External links

• Square feet conversion to acres and other units of area