The calculated distance (air line) between Nedroma and Sidi Bel Abbes is approximately 64 miles respectively 104 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 Nedroma and Sidi Bel Abbes has been calculated here.
Air line (approximately)
104 kilometers
56 nautical miles