The calculated distance (air line) between Nāḩiyat al Fuhūd and Az Zubayr is approximately 71 miles respectively 114 kilometers.
By car or train, the actual journey to Az Zubayr is certainly longer, as only the direct route (as the crow flies) between Nāḩiyat al Fuhūd and Az Zubayr has been calculated here.
Air line (approximately)
114 kilometers
61 nautical miles