The calculated distance (air line) between Suciu de Sus and Piatra Neamţ is approximately 114 miles respectively 183 kilometers.
By car or train, the actual journey to Piatra Neamţ is certainly longer, as only the direct route (as the crow flies) between Suciu de Sus and Piatra Neamţ has been calculated here.
Air line (approximately)
183 kilometers
99 nautical miles