The calculated distance (air line) between Ḩizmā and Banī Na‘īm is approximately 23 miles respectively 37 kilometers.
By car or train, the actual journey to Banī Na‘īm is certainly longer, as only the direct route (as the crow flies) between Ḩizmā and Banī Na‘īm has been calculated here.
Air line (approximately)
37 kilometers
20 nautical miles