The calculated distance (air line) between Rostov-na-Donu and Sokolovo-Kundryuchenskiy is approximately 43 miles respectively 69 kilometers.
By car or train, the actual journey to Sokolovo-Kundryuchenskiy is certainly longer, as only the direct route (as the crow flies) between Rostov-na-Donu and Sokolovo-Kundryuchenskiy has been calculated here.
Air line (approximately)
69 kilometers
37 nautical miles