The calculated distance (air line) between Yūsuf aṣ-Ṣiddīq and Damanhur is approximately 116 miles respectively 186 kilometers.
By car or train, the actual journey to Damanhur is certainly longer, as only the direct route (as the crow flies) between Yūsuf aṣ-Ṣiddīq and Damanhur has been calculated here.
Air line (approximately)
186 kilometers
100 nautical miles