The calculated distance (air line) between Néoi Epivátes and Kallithéa is approximately 181 miles respectively 291 kilometers.
By car or train, the actual journey to Kallithéa is certainly longer, as only the direct route (as the crow flies) between Néoi Epivátes and Kallithéa has been calculated here.
Air line (approximately)
291 kilometers
157 nautical miles