The calculated distance (air line) between Ighiu and Piatra Neamţ is approximately 144 miles respectively 232 kilometers.
By car or train, the actual journey to Piatra Neamţ is certainly longer, as only the direct route (as the crow flies) between Ighiu and Piatra Neamţ has been calculated here.
Air line (approximately)
232 kilometers
125 nautical miles