The calculated distance (air line) between Mizdah and Qaşr Bin Ghashīr is approximately 86 miles respectively 138 kilometers.
By car or train, the actual journey to Qaşr Bin Ghashīr is certainly longer, as only the direct route (as the crow flies) between Mizdah and Qaşr Bin Ghashīr has been calculated here.
Air line (approximately)
138 kilometers
75 nautical miles