Microns to Metric Inches. 1 Metric inch is exactly onetwelfth (1/12) of a metric foot = centimeters = 25 millimeters = meters (SI base unit). 1 Metric inch = m. Microns to Metric Miles. Meters (SI base unit). An approximation of a statute mile in a round figure of meters. 1 Metric mile = m. Microns to Mickeys