The calculated distance (air line) between Morrelgonj and Nārāyanganj is approximately 90 miles respectively 145 kilometers.
By car or train, the actual journey to Nārāyanganj is certainly longer, as only the direct route (as the crow flies) between Morrelgonj and Nārāyanganj has been calculated here.
Air line (approximately)
145 kilometers
78 nautical miles