The calculated distance (air line) between Sīdī Sālim and Shirbīn is approximately 44 miles respectively 71 kilometers.
By car or train, the actual journey to Shirbīn is certainly longer, as only the direct route (as the crow flies) between Sīdī Sālim and Shirbīn has been calculated here.
Air line (approximately)
71 kilometers
38 nautical miles