Square mile
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From Wikipedia, the free encyclopedia
(Redirected from Square miles)
"Mile square" redirects here. For other uses, see Mile square (disambiguation) and Square mile (disambiguation).
Unit of area
| square mile | |
|---|---|
| Midway International Airport is about 650 acres (1.02 mi2) in area.[1] | |
| General information | |
| Unit system | Imperial, United States customary units |
| Unit of | area |
| Symbol | mi2, sq mi |
| Conversions | |
| 1 mi2 in ... | ... is equal to ... |
| Imperial/US |
|
| SI units |
|
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The square mile (abbreviated as sq mi and sometimes as mi2)[2] is an imperial and US unit of measure for area. One square mile is equal to the area of a square with each side measuring a length of one mile.[3]
Equivalents
[edit ]
One square mile is equal to:
- about four billion square inches [4]
- nearly 27.9 million square feet
- nearly 3.1 million square yards
- 2,560 roods
- 640 acres
One square mile is also equivalent to:
- nearly 2.59 million square meters
- nearly 25.9 billion square centimeters
- nearly 2.59 trillion square millimeters
Similarly named units
[edit ]Miles square
[edit ]Square miles should not be confused with miles square, a square region with each side having a length of the value given. For example, a region which is 20 miles square (20 miles ×ばつ 20 miles) has an area of 400 mi2; a rectangle of measuring 10 miles ×ばつ 40 miles also has an area of 400 mi2, but is not 20 miles square.
Section
[edit ]In the United States Public Land Survey System, "square mile" is an informal synonym for section.
References
[edit ]- ^ FAA Airport Form 5010 for MDW PDF. effective February 19, 2026.
- ^ Rowlett, Russ (September 1, 2004). "S", How Many? A Dictionary of Units of Measurement. University of North Carolina at Chapel Hill. Retrieved February 22, 2012.
- ^ Davies, Charles (1872). Mathematical dictionary and cyclopedia of mathematical science. Original from Harvard University: A.S. Barnes and co. p. 582.
- ^ François Cardarelli (2003). Encyclopaedia of scientific units, weights, and measures: their SI equivalences and origins . Springer. p. 3. ISBN 978-1-85233-682-0 . Retrieved 22 February 2012.