The calculated distance (air line) between Al Fayyum and Diyarb Najm is approximately 106 miles respectively 171 kilometers.
By car or train, the actual journey to Diyarb Najm is certainly longer, as only the direct route (as the crow flies) between Al Fayyum and Diyarb Najm has been calculated here.
Air line (approximately)
171 kilometers
92 nautical miles