The calculated distance (air line) between Khorramshahr and Mubārak al Kabīr is approximately 87 miles respectively 139 kilometers.
By car or train, the actual journey to Mubārak al Kabīr is certainly longer, as only the direct route (as the crow flies) between Khorramshahr and Mubārak al Kabīr has been calculated here.
Air line (approximately)
139 kilometers
75 nautical miles