World Library  
Flag as Inappropriate
Email this Article
 

Square mile

The square mile (abbreviated as sq mi and sometimes as mi2)[1] is an imperial and US unit of measure for an area equal to the area of a square of one statute mile.[2] 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; an area of 10 × 40 miles is likewise 400 square miles, but it is not 20 miles square.

One square mile is equal to:

A square mile is equivalent to the following metric system measures:-

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

Romans derived measurements from marching. Five feet was equal to one pace (which is appropriately a double step). 1,000 paces measured a Roman mile which is very close to the British mile as used in 21st century. This Roman system was adopted, with local variations, throughout Europe as the Roman Empire spread.[5]

Total population in a square mile is derived by dividing the total number of residents by the number of square miles of land area in the specified geographic area. The population per square kilometer is derived by multiplying the population per square mile by .3861.[6]

Land area measurements are originally recorded as whole square meters. Square meters are converted to square kilometers by dividing by 1,000,000; square kilometers are converted to square miles by dividing by 2.58999; square meters are converted to square miles by dividing by 2,589,988.[6]

References

  1. ^ a b Rowlett, Russ (September 1, 2004). How Many? A Dictionary of Units of Measurement"S", . University of North Carolina at Chapel Hill. Retrieved February 22, 2012.
  2. ^
  3. ^ a b c
  4. ^
  5. ^
  6. ^ a b
  • Formula Conversion, Square miles to numerous area units with algebraic steps and unit cancellation shown


This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.