The calculated distance (air line) between Néa Moudhaniá and Maroúsi is approximately 154 miles respectively 248 kilometers.
By car or train, the actual journey to Maroúsi is certainly longer, as only the direct route (as the crow flies) between Néa Moudhaniá and Maroúsi has been calculated here.
Air line (approximately)
248 kilometers
134 nautical miles