The calculated distance (air line) between Dayr al ‘Aşāfīr and An Nabk is approximately 42 miles respectively 68 kilometers.
By car or train, the actual journey to An Nabk is certainly longer, as only the direct route (as the crow flies) between Dayr al ‘Aşāfīr and An Nabk has been calculated here.
Air line (approximately)
68 kilometers
37 nautical miles