The calculated distance (air line) between Suwannaphum and Nakhon Ratchasima is approximately 121 miles respectively 195 kilometers.
By car or train, the actual journey to Nakhon Ratchasima is certainly longer, as only the direct route (as the crow flies) between Suwannaphum and Nakhon Ratchasima has been calculated here.
Air line (approximately)
195 kilometers
105 nautical miles