Unit of Measure

Pronunciation: /ˈyunɪt ʌv ˈmɛʒər/ Explain

A unit of measure is the definition of the number '1' in a metric space. For example, when we use meters, the unit of measure is 1 meter. In the context of meters, a unit is 1 meter. However, if one is using feet for a measurement of distance, '1' means 1 foot.

A mathematical object is unity if it defines 1 in a unit of measure1.


  1. Descartes, René. La Geometrie. pg 297-298. Discourse. 1673


  1. Bettinger, Alvin K. and Englund, John A.. Algebra and Trigonometry. pg 4. www.archive.org. International Textbook Company. January 1963. Last Accessed 1/12/2010. http://www.archive.org/stream/algebraandtrigon033520mbp#page/n18/mode/1up. Buy the book
  2. unit. merriam-webster.com. Encyclopedia Britannica. Merriam-Webster. Last Accessed 3/12/2009. http://www.merriam-webster.com/dictionary/unit.

More Information

  • McAdams, David E.. Measurement. allmathwords.org. All Math Words Encyclopedia. Life is a Story Problem LLC. 3/12/2009. http://www.allmathwords.org/en/m/measurement.html.

Cite this article as:

McAdams, David E. Unit of Measure. 5/5/2011. All Math Words Encyclopedia. Life is a Story Problem LLC. http://www.allmathwords.org/en/u/unit.html.

Revision History

11/11/2009: Added sentence on unitary. (McAdams, David E.)
9/18/2008: Changed 'unit' to 'unit of measure', added 'Measurement' to More Information. (McAdams, David E.)
3/11/2008: Added See Also section. (McAdams, David E.)
7/12/2007: Initial version. (McAdams, David E.)

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