Minutes (angular) conversion

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Minutes (angular)


  • MOA
  • arcmin

Unit of:

  • Angle

Worldwide use:

  • Global


A minute of arc, also known as arcminute is an unit of angle equal to 1⁄60 of a degree, or 1⁄21600 of a circle . It is used in fields that involve very small angles such as optometry, navigation and marksmanship.


The milliradian ('mil') was first used in the 19th Century by Charles-Marc Dapples, who was a professor at the University of Lausanne. At the beginning of World War I, France started experimenting with using milliradians on artillery sights instead of decigrades (circle/4000). They were used by France alongside decigrades during World War I. The United States, who copied many French artillery practices, also adopted mils.

Usage context:

Along with the degree,arc minutes and seconds are the most commonly used angular measurement units

Component units:

  • An arc minute can be divided into 60 arc seconds


  • There are 60 arc minutes in a degree and 21,600 arc minutes in a circle.