Square mile
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From Wikipedia, the free encyclopedia
"Mile square" redirects here. For other uses, see Mile square (disambiguation) and Square mile (disambiguation).
Unit of area
| square mile | |
|---|---|
| Various units of area, with square mile being represented as a yellow square | |
| 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 |
|
The square mile (abbreviated as sq mi and sometimes as mi2)[1] 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.[2]
Equivalents
[edit ]One square mile is equal to:
- 4,014,489,600 square inches [3]
- 27,878,400 square feet
- 3,097,600 square yards
- 2,560 roods
- 640 acres
One square mile is also equivalent to:
- 2,589,988.1103360 square metres
- 258.99881103360 hectares
- 2.5899881103360 square kilometres
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 sq mi; a rectangle of measuring 10 miles ×ばつ 40 miles also has an area of 400 sq mi, 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 ]- ^ 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.