The calculated distance (air line) between Nāḩiyat al Fuhūd and An Nu‘mānīyah is approximately 134 miles respectively 216 kilometers.
By car or train, the actual journey to An Nu‘mānīyah is certainly longer, as only the direct route (as the crow flies) between Nāḩiyat al Fuhūd and An Nu‘mānīyah has been calculated here.
Air line (approximately)
216 kilometers
116 nautical miles