The calculated distance (air line) between Zacháro and Néa Smýrni is approximately 117 miles respectively 189 kilometers.
By car or train, the actual journey to Néa Smýrni is certainly longer, as only the direct route (as the crow flies) between Zacháro and Néa Smýrni has been calculated here.
Air line (approximately)
189 kilometers
102 nautical miles