The calculated distance (air line) between Shahr-e Bābak and Bardsīr is approximately 88 miles respectively 142 kilometers.
By car or train, the actual journey to Bardsīr is certainly longer, as only the direct route (as the crow flies) between Shahr-e Bābak and Bardsīr has been calculated here.
Air line (approximately)
142 kilometers
77 nautical miles