The calculated distance (air line) between Néon Karlovásion and Maroúsi is approximately 159 miles respectively 256 kilometers.
By car or train, the actual journey to Maroúsi is certainly longer, as only the direct route (as the crow flies) between Néon Karlovásion and Maroúsi has been calculated here.
Air line (approximately)
256 kilometers
138 nautical miles