The calculated distance (air line) between Târnăveni and Piatra Neamţ is approximately 105 miles respectively 169 kilometers.
By car or train, the actual journey to Piatra Neamţ is certainly longer, as only the direct route (as the crow flies) between Târnăveni and Piatra Neamţ has been calculated here.
Air line (approximately)
169 kilometers
91 nautical miles