The calculated distance (air line) between Hammam Bou Hadjar and Chlef is approximately 140 miles respectively 225 kilometers.
By car or train, the actual journey to Chlef is certainly longer, as only the direct route (as the crow flies) between Hammam Bou Hadjar and Chlef has been calculated here.
Air line (approximately)
225 kilometers
122 nautical miles