The calculated distance (air line) between Dikirnis and Sīdī Sālim is approximately 49 miles respectively 80 kilometers.
By car or train, the actual journey to Sīdī Sālim is certainly longer, as only the direct route (as the crow flies) between Dikirnis and Sīdī Sālim has been calculated here.
Air line (approximately)
80 kilometers
43 nautical miles