The calculated distance (air line) between Iaşi and Piatra Neamţ is approximately 62 miles respectively 100 kilometers.
By car or train, the actual journey to Piatra Neamţ is certainly longer, as only the direct route (as the crow flies) between Iaşi and Piatra Neamţ has been calculated here.
Air line (approximately)
100 kilometers
54 nautical miles