The calculated distance (air line) between At Tall al Kabīr and Al Qāhirah al Jadīdah is approximately 40 miles respectively 65 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 At Tall al Kabīr and Al Qāhirah al Jadīdah has been calculated here.
Air line (approximately)
65 kilometers
35 nautical miles