The calculated distance (air line) between Az̧ Z̧āhirīyah and Al Bīrah is approximately 37 miles respectively 60 kilometers.
By car or train, the actual journey to Al Bīrah is certainly longer, as only the direct route (as the crow flies) between Az̧ Z̧āhirīyah and Al Bīrah has been calculated here.
Air line (approximately)
60 kilometers
32 nautical miles