The calculated distance (air line) between Sidi Alouane and Ksar Hellal is approximately 19 miles respectively 31 kilometers.
By car or train, the actual journey to Ksar Hellal is certainly longer, as only the direct route (as the crow flies) between Sidi Alouane and Ksar Hellal has been calculated here.
Air line (approximately)
31 kilometers
17 nautical miles