The calculated distance (air line) between Nong Bua Lamphu and Nakhon Sawan is approximately 184 miles respectively 297 kilometers.
By car or train, the actual journey to Nakhon Sawan is certainly longer, as only the direct route (as the crow flies) between Nong Bua Lamphu and Nakhon Sawan has been calculated here.
Air line (approximately)
297 kilometers
160 nautical miles