The calculated distance (air line) between An Nāşirīyah and Al Khums is approximately 81 miles respectively 130 kilometers.
By car or train, the actual journey to Al Khums is certainly longer, as only the direct route (as the crow flies) between An Nāşirīyah and Al Khums has been calculated here.
Air line (approximately)
130 kilometers
70 nautical miles