The calculated distance (air line) between Zheleznodorozhnyy and Ryazanskiy is approximately 10 miles respectively 16 kilometers.
By car or train, the actual journey to Ryazanskiy is certainly longer, as only the direct route (as the crow flies) between Zheleznodorozhnyy and Ryazanskiy has been calculated here.
Air line (approximately)
16 kilometers
8 nautical miles