The calculated distance (air line) between Dayr Ḩāfir and An Nabk is approximately 157 miles respectively 253 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 Ḩāfir and An Nabk has been calculated here.
Air line (approximately)
253 kilometers
137 nautical miles