The calculated distance (air line) between Ras Gharib and Ţahţā is approximately 146 miles respectively 235 kilometers.
By car or train, the actual journey to Ţahţā is certainly longer, as only the direct route (as the crow flies) between Ras Gharib and Ţahţā has been calculated here.
Air line (approximately)
235 kilometers
127 nautical miles