The calculated distance (air line) between Zheleznodorozhnyy and Reutov is approximately 6 miles respectively 10 kilometers.
By car or train, the actual journey to Reutov is certainly longer, as only the direct route (as the crow flies) between Zheleznodorozhnyy and Reutov has been calculated here.
Air line (approximately)
10 kilometers
5 nautical miles