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