The calculated distance (air line) between Phu Kradueng and Khon Kaen is approximately 70 miles respectively 112 kilometers.
By car or train, the actual journey to Khon Kaen is certainly longer, as only the direct route (as the crow flies) between Phu Kradueng and Khon Kaen has been calculated here.
Air line (approximately)
112 kilometers
61 nautical miles