The calculated distance (air line) between Tha Ruea and Nakhon Pathom is approximately 69 miles respectively 111 kilometers.
By car or train, the actual journey to Nakhon Pathom is certainly longer, as only the direct route (as the crow flies) between Tha Ruea and Nakhon Pathom has been calculated here.
Air line (approximately)
111 kilometers
60 nautical miles