The calculated distance (air line) between Satu Mare and Piatra Neamţ is approximately 174 miles respectively 279 kilometers.
By car or train, the actual journey to Piatra Neamţ is certainly longer, as only the direct route (as the crow flies) between Satu Mare and Piatra Neamţ has been calculated here.
Air line (approximately)
279 kilometers
151 nautical miles