The calculated distance (air line) between Hājīganj and Nārāyanganj is approximately 34 miles respectively 54 kilometers.
By car or train, the actual journey to Nārāyanganj is certainly longer, as only the direct route (as the crow flies) between Hājīganj and Nārāyanganj has been calculated here.
Air line (approximately)
54 kilometers
29 nautical miles