Chiyero chekupimisa (Unit of measure)- pakupimwa kunoitwa zvinopimwa pane mwero yakatarwa pamutemo (pasirose) kuti ishandiswe kupima mipimo yakasiyana inodaidzwa nemazita akasiyana. Sokuti kana tichipima nhambwe tinoshandisa chiyero chinonzi mita (metre).