The calculated distance (air line) between Pran Buri and Khlong Luang is approximately 126 miles respectively 203 kilometers.
By car or train, the actual journey to Khlong Luang is certainly longer, as only the direct route (as the crow flies) between Pran Buri and Khlong Luang has been calculated here.
Air line (approximately)
203 kilometers
110 nautical miles