The calculated distance (air line) between Comarnic and Piatra Neamţ is approximately 120 miles respectively 193 kilometers.
By car or train, the actual journey to Piatra Neamţ is certainly longer, as only the direct route (as the crow flies) between Comarnic and Piatra Neamţ has been calculated here.
Air line (approximately)
193 kilometers
104 nautical miles