The calculated distance (air line) between Bou Arkoub and Houmt El Souk is approximately 185 miles respectively 297 kilometers.
By car or train, the actual journey to Houmt El Souk is certainly longer, as only the direct route (as the crow flies) between Bou Arkoub and Houmt El Souk has been calculated here.
Air line (approximately)
297 kilometers
160 nautical miles