The calculated distance (air line) between Al Maḩallah al Kubrá and New Cairo is approximately 67 miles respectively 109 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 Maḩallah al Kubrá and New Cairo has been calculated here.
Air line (approximately)
109 kilometers
59 nautical miles