The calculated distance (air line) between Muktāgācha and Nārāyanganj is approximately 81 miles respectively 130 kilometers.
By car or train, the actual journey to Nārāyanganj is certainly longer, as only the direct route (as the crow flies) between Muktāgācha and Nārāyanganj has been calculated here.
Air line (approximately)
130 kilometers
70 nautical miles