The calculated distance (air line) between Cernica and Piatra Neamţ is approximately 173 miles respectively 278 kilometers.
By car or train, the actual journey to Piatra Neamţ is certainly longer, as only the direct route (as the crow flies) between Cernica and Piatra Neamţ has been calculated here.
Air line (approximately)
278 kilometers
150 nautical miles