The calculated distance (air line) between Samut Songkhram and Khlong Luang is approximately 62 miles respectively 100 kilometers.
By car or train, the actual journey to Khlong Luang is certainly longer, as only the direct route (as the crow flies) between Samut Songkhram and Khlong Luang has been calculated here.
Air line (approximately)
100 kilometers
54 nautical miles