The calculated distance (air line) between Thap Than and Nakhon Ratchasima is approximately 151 miles respectively 243 kilometers.
By car or train, the actual journey to Nakhon Ratchasima is certainly longer, as only the direct route (as the crow flies) between Thap Than and Nakhon Ratchasima has been calculated here.
Air line (approximately)
243 kilometers
131 nautical miles