The square mile (abbreviated as sq mi and sometimes as mi
2)
[Rowlett, Russ (September 1, 2004)]
University of North Carolina at Chapel Hill
A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. ''University'' is derived from the Latin phrase ''universitas magistrorum et scholarium'', which r ...
. Retrieved February 22, 2012. is an
imperial
Imperial is that which relates to an empire, emperor, or imperialism.
Imperial or The Imperial may also refer to:
Places
United States
* Imperial, California
* Imperial, Missouri
* Imperial, Nebraska
* Imperial, Pennsylvania
* Imperial, Texas
...
and
US unit of measure for area. One square mile is an
area
Area is the quantity that expresses the extent of a region on the plane or on a curved surface. The area of a plane region or ''plane area'' refers to the area of a shape or planar lamina, while ''surface area'' refers to the area of an open su ...
equal to the area of a
square
In Euclidean geometry, a square is a regular quadrilateral, which means that it has four equal sides and four equal angles (90-degree angles, π/2 radian angles, or right angles). It can also be defined as a rectangle with two equal-length a ...
with sides of length one
mile.
Equivalents
One square mile is equal to:
*4,014,489,600
square inches
*
*
*
*
One square mile is also equivalent to:
*
*
*
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 ( × ) has an area of ; a rectangle of measuring × also has an area of , but is not 20 miles square.
Section
In the United States
Public Land Survey System, "square mile" is an informal synonym for
section.
References
Formula Conversion, Square miles to numerous area units with algebraic steps and unit cancellation shown
{{DEFAULTSORT:Square Mile
Units of area
Customary units of measurement in the United States
Imperial units