The calculated distance (air line) between Narsingdi and Maulavi Bāzār is approximately 77 miles respectively 124 kilometers.
By car or train, the actual journey to Maulavi Bāzār is certainly longer, as only the direct route (as the crow flies) between Narsingdi and Maulavi Bāzār has been calculated here.
Air line (approximately)
124 kilometers
67 nautical miles