The calculated distance (air line) between Sidi Yahia El Gharb and El Jadid is approximately 146 miles respectively 235 kilometers.
By car or train, the actual journey to El Jadid is certainly longer, as only the direct route (as the crow flies) between Sidi Yahia El Gharb and El Jadid has been calculated here.
Air line (approximately)
235 kilometers
127 nautical miles