The calculated distance (air line) between Ban Phru Nai and Nakhon Si Thammarat is approximately 100 miles respectively 161 kilometers.
By car or train, the actual journey to Nakhon Si Thammarat is certainly longer, as only the direct route (as the crow flies) between Ban Phru Nai and Nakhon Si Thammarat has been calculated here.
Air line (approximately)
161 kilometers
87 nautical miles