The calculated distance (air line) between Mizhirah and Khamis Mushait is approximately 102 miles respectively 164 kilometers.
By car or train, the actual journey to Khamis Mushait is certainly longer, as only the direct route (as the crow flies) between Mizhirah and Khamis Mushait has been calculated here.
Air line (approximately)
164 kilometers
88 nautical miles