The calculated distance (air line) between Wādī as Sīr and Ḩayy al Quwaysimah is approximately 8 miles respectively 13 kilometers.
By car or train, the actual journey to Ḩayy al Quwaysimah is certainly longer, as only the direct route (as the crow flies) between Wādī as Sīr and Ḩayy al Quwaysimah has been calculated here.
Air line (approximately)
13 kilometers
7 nautical miles