The calculated distance (air line) between Umm Qaşr and Al Hārithah is approximately 39 miles respectively 63 kilometers.
By car or train, the actual journey to Al Hārithah is certainly longer, as only the direct route (as the crow flies) between Umm Qaşr and Al Hārithah has been calculated here.
Air line (approximately)
63 kilometers
34 nautical miles