The calculated distance (air line) between Bāndarban and Cox’s Bāzār is approximately 54 miles respectively 87 kilometers.
By car or train, the actual journey to Cox’s Bāzār is certainly longer, as only the direct route (as the crow flies) between Bāndarban and Cox’s Bāzār has been calculated here.
Air line (approximately)
87 kilometers
47 nautical miles