The calculated distance (air line) between Ras Gharib and Al Khuşūş is approximately 163 miles respectively 263 kilometers.
By car or train, the actual journey to Al Khuşūş is certainly longer, as only the direct route (as the crow flies) between Ras Gharib and Al Khuşūş has been calculated here.
Air line (approximately)
263 kilometers
142 nautical miles