The calculated distance (air line) between Gaza and Az̧ Z̧āhirīyah is approximately 31 miles respectively 49 kilometers.
By car or train, the actual journey to Az̧ Z̧āhirīyah is certainly longer, as only the direct route (as the crow flies) between Gaza and Az̧ Z̧āhirīyah has been calculated here.
Air line (approximately)
49 kilometers
27 nautical miles