The calculated distance (air line) between Al ‘Alamayn and Al Qāhirah al Jadīdah is approximately 158 miles respectively 254 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 Al ‘Alamayn and Al Qāhirah al Jadīdah has been calculated here.
Air line (approximately)
254 kilometers
137 nautical miles