The calculated distance (air line) between Kafr az Zayyāt and Sīdī Sālim is approximately 31 miles respectively 50 kilometers.
By car or train, the actual journey to Sīdī Sālim is certainly longer, as only the direct route (as the crow flies) between Kafr az Zayyāt and Sīdī Sālim has been calculated here.
Air line (approximately)
50 kilometers
27 nautical miles