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