The calculated distance (air line) between Phu Khiao and Nakhon Sawan is approximately 140 miles respectively 226 kilometers.
By car or train, the actual journey to Nakhon Sawan is certainly longer, as only the direct route (as the crow flies) between Phu Khiao and Nakhon Sawan has been calculated here.
Air line (approximately)
226 kilometers
122 nautical miles