The calculated distance (air line) between Copălău and Piatra Neamţ is approximately 54 miles respectively 87 kilometers.
By car or train, the actual journey to Piatra Neamţ is certainly longer, as only the direct route (as the crow flies) between Copălău and Piatra Neamţ has been calculated here.
Air line (approximately)
87 kilometers
47 nautical miles