The calculated distance (air line) between Lālmohan and Nārāyanganj is approximately 89 miles respectively 144 kilometers.
By car or train, the actual journey to Nārāyanganj is certainly longer, as only the direct route (as the crow flies) between Lālmohan and Nārāyanganj has been calculated here.
Air line (approximately)
144 kilometers
78 nautical miles