The calculated distance (air line) between El Achir and Oum el Bouaghi is approximately 140 miles respectively 225 kilometers.
By car or train, the actual journey to Oum el Bouaghi is certainly longer, as only the direct route (as the crow flies) between El Achir and Oum el Bouaghi has been calculated here.
Air line (approximately)
225 kilometers
121 nautical miles