The calculated distance (air line) between Almyrós and Néa Smýrni is approximately 100 miles respectively 161 kilometers.
By car or train, the actual journey to Néa Smýrni is certainly longer, as only the direct route (as the crow flies) between Almyrós and Néa Smýrni has been calculated here.
Air line (approximately)
161 kilometers
87 nautical miles