The calculated distance (air line) between Khon Buri and Phra Pradaeng is approximately 129 miles respectively 208 kilometers.
By car or train, the actual journey to Phra Pradaeng is certainly longer, as only the direct route (as the crow flies) between Khon Buri and Phra Pradaeng has been calculated here.
Air line (approximately)
208 kilometers
112 nautical miles