The calculated distance (air line) between Haiphong and Cẩm Phả Mines is approximately 41 miles respectively 66 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 Haiphong and Cẩm Phả Mines has been calculated here.
Air line (approximately)
66 kilometers
36 nautical miles