The calculated distance (air line) between Sector 5 and Piatra Neamţ is approximately 175 miles respectively 282 kilometers.
By car or train, the actual journey to Piatra Neamţ is certainly longer, as only the direct route (as the crow flies) between Sector 5 and Piatra Neamţ has been calculated here.
Air line (approximately)
282 kilometers
152 nautical miles