The calculated distance (air line) between Narsingdi and Bhairab Bāzār is approximately 19 miles respectively 30 kilometers.
By car or train, the actual journey to Bhairab Bāzār is certainly longer, as only the direct route (as the crow flies) between Narsingdi and Bhairab Bāzār has been calculated here.
Air line (approximately)
30 kilometers
16 nautical miles