The calculated distance (air line) between Al Qāhirah al Jadīdah and Mīt Ghamr is approximately 48 miles respectively 77 kilometers.
By car or train, the actual journey to Mīt Ghamr is certainly longer, as only the direct route (as the crow flies) between Al Qāhirah al Jadīdah and Mīt Ghamr has been calculated here.
Air line (approximately)
77 kilometers
42 nautical miles