The calculated distance (air line) between Sīdī Ghāzī and Damanhur is approximately 37 miles respectively 59 kilometers.
By car or train, the actual journey to Damanhur is certainly longer, as only the direct route (as the crow flies) between Sīdī Ghāzī and Damanhur has been calculated here.
Air line (approximately)
59 kilometers
32 nautical miles