The calculated distance (air line) between Bordj Bou Arreridj and Mila is approximately 88 miles respectively 141 kilometers.
By car or train, the actual journey to Mila is certainly longer, as only the direct route (as the crow flies) between Bordj Bou Arreridj and Mila has been calculated here.
Air line (approximately)
141 kilometers
76 nautical miles