The calculated distance (air line) between Phasi Charoen and Khlong Luang is approximately 28 miles respectively 45 kilometers.
By car or train, the actual journey to Khlong Luang is certainly longer, as only the direct route (as the crow flies) between Phasi Charoen and Khlong Luang has been calculated here.
Air line (approximately)
45 kilometers
24 nautical miles