The calculated distance (air line) between Hudeşti and Piatra Neamţ is approximately 86 miles respectively 138 kilometers.
By car or train, the actual journey to Piatra Neamţ is certainly longer, as only the direct route (as the crow flies) between Hudeşti and Piatra Neamţ has been calculated here.
Air line (approximately)
138 kilometers
74 nautical miles