The calculated distance (air line) between Damanhur and Al Qāhirah al Jadīdah is approximately 90 miles respectively 145 kilometers.
By car or train, the actual journey to Al Qāhirah al Jadīdah is certainly longer, as only the direct route (as the crow flies) between Damanhur and Al Qāhirah al Jadīdah has been calculated here.
Air line (approximately)
145 kilometers
78 nautical miles