Square Mile

The square mile (abbreviated as sq mi and sometimes as mi2) is an imperial and US unit of measure for an area equal to the area of a square of one statute mile. It should not be confused with miles square, which refers to the number of miles on each side squared. For instance, 20 miles square (20 × 20 miles) is equal to 400 square miles.

One square mile is equivalent to:

  • 4,014,489,600 square inches
  • 27,878,400 square feet
  • 3,097,600 square yards
  • 640 acres
  • 258.9988110336 hectares
  • 2560 roods
  • 25,899,881,103.36 square centimetres
  • 2,589,988.110336 square metres
  • 2.589988110336 square kilometres

When applied to a portion of the earth's surface, which is curved rather than flat, "square mile" is an informal synonym for section.

Famous quotes containing the words square and/or mile:

    If magistrates had true justice, and if physicians had the true art of healing, they would have no occasion for square caps; the majesty of these sciences would of itself be venerable enough. But having only imaginary knowledge, they must employ those silly tools that strike the imagination with which they have to deal; and thereby, in fact, they inspire respect.
    Blaise Pascal (1623–1662)

    For now the moon with friendless light carouses
    On hill and housetop, street and marketplace,
    Men will plunge, mile after mile of men,
    To crush this lucent madness of the face....
    Allen Tate (1899–1979)