The calculated distance (air line) between Abū al-Kahṣīb and Umm Qaşr is approximately 28 miles respectively 45 kilometers.
By car or train, the actual journey to Umm Qaşr is certainly longer, as only the direct route (as the crow flies) between Abū al-Kahṣīb and Umm Qaşr has been calculated here.
Air line (approximately)
45 kilometers
25 nautical miles