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