The calculated distance (air line) between Khon Buri and Nakhon Ratchasima is approximately 32 miles respectively 52 kilometers.
By car or train, the actual journey to Nakhon Ratchasima is certainly longer, as only the direct route (as the crow flies) between Khon Buri and Nakhon Ratchasima has been calculated here.
Air line (approximately)
52 kilometers
28 nautical miles