The calculated distance (air line) between Phra Pradaeng and Nakhon Sawan is approximately 144 miles respectively 231 kilometers.
By car or train, the actual journey to Nakhon Sawan is certainly longer, as only the direct route (as the crow flies) between Phra Pradaeng and Nakhon Sawan has been calculated here.
Air line (approximately)
231 kilometers
125 nautical miles