The calculated distance (air line) between Hanoi and Cẩm Phả Mines is approximately 94 miles respectively 151 kilometers.
By car or train, the actual journey to Cẩm Phả Mines is certainly longer, as only the direct route (as the crow flies) between Hanoi and Cẩm Phả Mines has been calculated here.
Air line (approximately)
151 kilometers
82 nautical miles