The calculated distance (air line) between Al Hārithah and Nāḩiyat al Fuhūd is approximately 67 miles respectively 108 kilometers.
By car or train, the actual journey to Nāḩiyat al Fuhūd is certainly longer, as only the direct route (as the crow flies) between Al Hārithah and Nāḩiyat al Fuhūd has been calculated here.
Air line (approximately)
108 kilometers
58 nautical miles