The calculated distance (air line) between Ban Ko Kaeo and Nakhon Si Thammarat is approximately 113 miles respectively 181 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 Ko Kaeo and Nakhon Si Thammarat has been calculated here.
Air line (approximately)
181 kilometers
98 nautical miles