Convert Arc-seconds to Milliradians

Arc-seconds → Milliradians
arcsec × 0.004848137 = mrad mrad × 206.2648 = arcsec

To convert arc-seconds (arcsec) to milliradians (mrad), multiply the arc-seconds value by 0.004848137. One arc-seconds equals 0.004848137 milliradians; one milliradians equals 206.2648 arc-seconds. The conversion is a linear scaling with no offset, so the same factor applies to any value.