The calculated distance (air line) between Al Qāhirah al Jadīdah and Al Ḩawāmidīyah is approximately 15 miles respectively 25 kilometers.
By car or train, the actual journey to Al Ḩawāmidīyah is certainly longer, as only the direct route (as the crow flies) between Al Qāhirah al Jadīdah and Al Ḩawāmidīyah has been calculated here.
Air line (approximately)
25 kilometers
13 nautical miles