The calculated distance (air line) between Chahār Burj and Torbat-e Ḩeydarīyeh is approximately 183 miles respectively 295 kilometers.
By car or train, the actual journey to Torbat-e Ḩeydarīyeh is certainly longer, as only the direct route (as the crow flies) between Chahār Burj and Torbat-e Ḩeydarīyeh has been calculated here.
Air line (approximately)
295 kilometers
159 nautical miles