The calculated distance (air line) between Lat Yao and Nakhon Sawan is approximately 23 miles respectively 38 kilometers.
By car or train, the actual journey to Nakhon Sawan is certainly longer, as only the direct route (as the crow flies) between Lat Yao and Nakhon Sawan has been calculated here.
Air line (approximately)
38 kilometers
20 nautical miles