The calculated distance (air line) between Sidi Bel Abbes and Bir el Djir is approximately 37 miles respectively 59 kilometers.
By car or train, the actual journey to Bir el Djir is certainly longer, as only the direct route (as the crow flies) between Sidi Bel Abbes and Bir el Djir has been calculated here.
Air line (approximately)
59 kilometers
32 nautical miles