The calculated distance (air line) between Asprópyrgos and Néa Smýrni is approximately 11 miles respectively 17 kilometers.
By car or train, the actual journey to Néa Smýrni is certainly longer, as only the direct route (as the crow flies) between Asprópyrgos and Néa Smýrni has been calculated here.
Air line (approximately)
17 kilometers
9 nautical miles