The calculated distance (air line) between Al-Minyā al-Jadīdah and New Cairo is approximately 140 miles respectively 225 kilometers.
By car or train, the actual journey to New Cairo is certainly longer, as only the direct route (as the crow flies) between Al-Minyā al-Jadīdah and New Cairo has been calculated here.
Air line (approximately)
225 kilometers
122 nautical miles