The calculated distance (air line) between Thap Khlo and Khlong Luang is approximately 145 miles respectively 233 kilometers.
By car or train, the actual journey to Khlong Luang is certainly longer, as only the direct route (as the crow flies) between Thap Khlo and Khlong Luang has been calculated here.
Air line (approximately)
233 kilometers
126 nautical miles