The calculated distance (air line) between Piteşti and Piatra Neamţ is approximately 159 miles respectively 256 kilometers.
By car or train, the actual journey to Piatra Neamţ is certainly longer, as only the direct route (as the crow flies) between Piteşti and Piatra Neamţ has been calculated here.
Air line (approximately)
256 kilometers
138 nautical miles