The calculated distance (air line) between Tulnici and Piatra Neamţ is approximately 71 miles respectively 114 kilometers.
By car or train, the actual journey to Piatra Neamţ is certainly longer, as only the direct route (as the crow flies) between Tulnici and Piatra Neamţ has been calculated here.
Air line (approximately)
114 kilometers
62 nautical miles