The calculated distance (air line) between Medjez el Bab and Ksar Hellal is approximately 99 miles respectively 160 kilometers.
By car or train, the actual journey to Ksar Hellal is certainly longer, as only the direct route (as the crow flies) between Medjez el Bab and Ksar Hellal has been calculated here.
Air line (approximately)
160 kilometers
86 nautical miles