The calculated distance (air line) between Baia and Piatra Neamţ is approximately 35 miles respectively 56 kilometers.
By car or train, the actual journey to Piatra Neamţ is certainly longer, as only the direct route (as the crow flies) between Baia and Piatra Neamţ has been calculated here.
Air line (approximately)
56 kilometers
30 nautical miles