The calculated distance (air line) between Az Zāwīyah and As Sawānī is approximately 20 miles respectively 32 kilometers.
By car or train, the actual journey to As Sawānī is certainly longer, as only the direct route (as the crow flies) between Az Zāwīyah and As Sawānī has been calculated here.
Air line (approximately)
32 kilometers
17 nautical miles