The calculated distance (air line) between Remchi and Sidi Bel Abbes is approximately 46 miles respectively 74 kilometers.
By car or train, the actual journey to Sidi Bel Abbes is certainly longer, as only the direct route (as the crow flies) between Remchi and Sidi Bel Abbes has been calculated here.
Air line (approximately)
74 kilometers
40 nautical miles