The calculated distance (air line) between Kuchinarai and Nakhon Ratchasima is approximately 169 miles respectively 272 kilometers.
By car or train, the actual journey to Nakhon Ratchasima is certainly longer, as only the direct route (as the crow flies) between Kuchinarai and Nakhon Ratchasima has been calculated here.
Air line (approximately)
272 kilometers
147 nautical miles