The calculated distance (air line) between ‘Izrā and Wādī as Sīr is approximately 55 miles respectively 89 kilometers.
By car or train, the actual journey to Wādī as Sīr is certainly longer, as only the direct route (as the crow flies) between ‘Izrā and Wādī as Sīr has been calculated here.
Air line (approximately)
89 kilometers
48 nautical miles