The calculated distance (air line) between Nakhon Ratchasima and Chaiyaphum is approximately 58 miles respectively 94 kilometers.
By car or train, the actual journey to Chaiyaphum is certainly longer, as only the direct route (as the crow flies) between Nakhon Ratchasima and Chaiyaphum has been calculated here.
Air line (approximately)
94 kilometers
51 nautical miles