The calculated distance (air line) between Călan and Piatra Neamţ is approximately 180 miles respectively 289 kilometers.
By car or train, the actual journey to Piatra Neamţ is certainly longer, as only the direct route (as the crow flies) between Călan and Piatra Neamţ has been calculated here.
Air line (approximately)
289 kilometers
156 nautical miles