The calculated distance (air line) between Bulung’ur Shahri and Kogon Shahri is approximately 145 miles respectively 233 kilometers.
By car or train, the actual journey to Kogon Shahri is certainly longer, as only the direct route (as the crow flies) between Bulung’ur Shahri and Kogon Shahri has been calculated here.
Air line (approximately)
233 kilometers
125 nautical miles