The calculated distance (air line) between 1 Decembrie and Piatra Neamţ is approximately 182 miles respectively 293 kilometers.
By car or train, the actual journey to Piatra Neamţ is certainly longer, as only the direct route (as the crow flies) between 1 Decembrie and Piatra Neamţ has been calculated here.
Air line (approximately)
293 kilometers
158 nautical miles