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An arcsecond (arsec) or second of arc is 1/60 of an arcminute, 1/3600 of a degree, 1/1296000 of a turn, and π/648000 (about 1/206265) of a radian.
In relation to the base unit of [angle] => (radians), 1 Arcseconds (arcsec) is equal to 4.848137E-6 radians, while 1 Centesimal Minute Of Arc (c MOA) = 0.00015708 radians.| 81 Arcseconds | to common angle units |
|---|---|
| 81 arcsec | = 0.000392699097 radians (rad) |
| 81 arcsec | = 0.392699097 milliradians (mrad/mil) |
| 81 arcsec | = 0.39999989508509 angular mils (µ mil) |
| 81 arcsec | = 0.022499999999255 degrees (°deg) |
| 81 arcsec | = 0.025000001400564 gradians (grad) |
| 81 arcsec | = 1.3500010210115 arcminutes (arcmin) |
| 81 arcsec | = 81 arcseconds (arcsec) |
| 81 arcsec | = 0.00037499985389582 sextants (60°) |
| 81 arcsec | = 0.00074999827540107 signs (30°) |
| 81 arcsec | = 6.2499955754959E-5 turns (t) |