A minute of arc (MOA), arc minute (arcmin) or minute arc is a unit of angular measurement equal to one-sixtieth (1/60) of one degree.
Since one degree is 1/360 of a turn (or complete rotation), one minute of arc is 1/21600 of a turn.
′ or arcmin.
Astronomy, Cartography, Property cadastral survey, Firearms, Human vision, Materials and Manufacturing.
| Standard Units | |
|---|---|
| Centrad | {{centrad}} |
| Degree | {{deg}} |
| Gradians | {{gradians}} |
| Radians | {{rad}} |
| Seconds (angular) | {{seconds_angular}} |
| Sign | {{sign}} |
| Other Units | |
|---|---|
| Milliradians (NATO) | {{milliradians_NATO}} |
| Milliradians (UK) | {{milliradians_UK}} |
| Milliradians (US WW2) | {{milliradians_US_WW2}} |
| Milliradians (USSR) | {{milliradians_USSR}} |