The calculated distance (air line) between Borj Mejen Bel Abbès and El Mgarsa is approximately 155 miles respectively 250 kilometers.
By car or train, the actual journey to El Mgarsa is certainly longer, as only the direct route (as the crow flies) between Borj Mejen Bel Abbès and El Mgarsa has been calculated here.
Air line (approximately)
250 kilometers
135 nautical miles