The calculated distance (air line) between Prachuap Khiri Khan and Nakhon Pathom is approximately 139 miles respectively 224 kilometers.
By car or train, the actual journey to Nakhon Pathom is certainly longer, as only the direct route (as the crow flies) between Prachuap Khiri Khan and Nakhon Pathom has been calculated here.
Air line (approximately)
224 kilometers
121 nautical miles