The calculated distance (air line) between Nang Rong and Phra Pradaeng is approximately 166 miles respectively 267 kilometers.
By car or train, the actual journey to Phra Pradaeng is certainly longer, as only the direct route (as the crow flies) between Nang Rong and Phra Pradaeng has been calculated here.
Air line (approximately)
267 kilometers
144 nautical miles