The calculated distance (air line) between Dĩ An and Chơn Thành is approximately 37 miles respectively 60 kilometers.
By car or train, the actual journey to Chơn Thành is certainly longer, as only the direct route (as the crow flies) between Dĩ An and Chơn Thành has been calculated here.
Air line (approximately)
60 kilometers
32 nautical miles