The calculated distance (air line) between Sīdī aş Şayd and Tarhuna is approximately 11 miles respectively 18 kilometers.
By car or train, the actual journey to Tarhuna is certainly longer, as only the direct route (as the crow flies) between Sīdī aş Şayd and Tarhuna has been calculated here.
Air line (approximately)
18 kilometers
10 nautical miles