The calculated distance (air line) between Lucieni and Piatra Neamţ is approximately 149 miles respectively 240 kilometers.
By car or train, the actual journey to Piatra Neamţ is certainly longer, as only the direct route (as the crow flies) between Lucieni and Piatra Neamţ has been calculated here.
Air line (approximately)
240 kilometers
130 nautical miles