The calculated distance (air line) between Qaşr al Qarabūllī and Al Khums is approximately 33 miles respectively 52 kilometers.
By car or train, the actual journey to Al Khums is certainly longer, as only the direct route (as the crow flies) between Qaşr al Qarabūllī and Al Khums has been calculated here.
Air line (approximately)
52 kilometers
28 nautical miles