The calculated distance (air line) between Char Bhadrāsan and Nārāyanganj is approximately 27 miles respectively 44 kilometers.
By car or train, the actual journey to Nārāyanganj is certainly longer, as only the direct route (as the crow flies) between Char Bhadrāsan and Nārāyanganj has been calculated here.
Air line (approximately)
44 kilometers
24 nautical miles