The calculated distance (air line) between Samut Songkhram and Mueang Nonthaburi is approximately 46 miles respectively 74 kilometers.
By car or train, the actual journey to Mueang Nonthaburi is certainly longer, as only the direct route (as the crow flies) between Samut Songkhram and Mueang Nonthaburi has been calculated here.
Air line (approximately)
74 kilometers
40 nautical miles