The calculated distance (air line) between Al Khuşūş and Birkat as Sab‘ is approximately 36 miles respectively 57 kilometers.
By car or train, the actual journey to Birkat as Sab‘ is certainly longer, as only the direct route (as the crow flies) between Al Khuşūş and Birkat as Sab‘ has been calculated here.
Air line (approximately)
57 kilometers
31 nautical miles