The calculated distance (air line) between Bayt Ūlā and Az̧ Z̧āhirīyah is approximately 13 miles respectively 21 kilometers.
By car or train, the actual journey to Az̧ Z̧āhirīyah is certainly longer, as only the direct route (as the crow flies) between Bayt Ūlā and Az̧ Z̧āhirīyah has been calculated here.
Air line (approximately)
21 kilometers
12 nautical miles