The calculated distance (air line) between Wiset Chaichan and Khlong Luang is approximately 42 miles respectively 68 kilometers.
By car or train, the actual journey to Khlong Luang is certainly longer, as only the direct route (as the crow flies) between Wiset Chaichan and Khlong Luang has been calculated here.
Air line (approximately)
68 kilometers
36 nautical miles