The calculated distance (air line) between Amarpur and Bhairab Bāzār is approximately 56 miles respectively 91 kilometers.
By car or train, the actual journey to Bhairab Bāzār is certainly longer, as only the direct route (as the crow flies) between Amarpur and Bhairab Bāzār has been calculated here.
Air line (approximately)
91 kilometers
49 nautical miles