The calculated distance (air line) between Tanta and Al Qāhirah al Jadīdah is approximately 58 miles respectively 93 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 Tanta and Al Qāhirah al Jadīdah has been calculated here.
Air line (approximately)
93 kilometers
50 nautical miles