Square mile
Unit of area From Wikipedia, the free encyclopedia
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]
| 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 |
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| SI units |
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Equivalents
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
Miles square
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 × 20 miles) has an area of 400 sq mi; a rectangle of measuring 10 miles × 40 miles also has an area of 400 sq mi, but is not 20 miles square.
Section
In the United States Public Land Survey System, "square mile" is an informal synonym for section.
References
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