The calculated distance (air line) between Bang Pa-in and Nakhon Ratchasima is approximately 114 miles respectively 184 kilometers.
By car or train, the actual journey to Nakhon Ratchasima is certainly longer, as only the direct route (as the crow flies) between Bang Pa-in and Nakhon Ratchasima has been calculated here.
Air line (approximately)
184 kilometers
99 nautical miles