The calculated distance (air line) between Hadera and Rosh Ha‘Ayin is approximately 24 miles respectively 39 kilometers.
By car or train, the actual journey to Rosh Ha‘Ayin is certainly longer, as only the direct route (as the crow flies) between Hadera and Rosh Ha‘Ayin has been calculated here.
Air line (approximately)
39 kilometers
21 nautical miles