Ma'anar ƙamus na microradian raka'a ce ta ma'aunin kusurwa daidai da miliyan ɗaya na radian (alama: µrad). Ana yawan amfani da shi a cikin ilmin taurari, na'urorin gani, da sauran filayen da ake buƙatar ma'aunin ma'auni na kusurwa. Ɗayan microradian daidai yake da kusan 0.0573 arcse seconds ko 3.44 milliarcminites.
