The calculated distance (air line) between Cordun and Piatra Neamţ is approximately 25 miles respectively 41 kilometers.
By car or train, the actual journey to Piatra Neamţ is certainly longer, as only the direct route (as the crow flies) between Cordun and Piatra Neamţ has been calculated here.
Air line (approximately)
41 kilometers
22 nautical miles