The calculated distance (air line) between Ho Chi Minh City and Dĩ An is approximately 11 miles respectively 18 kilometers.
By car or train, the actual journey to Dĩ An is certainly longer, as only the direct route (as the crow flies) between Ho Chi Minh City and Dĩ An has been calculated here.
Air line (approximately)
18 kilometers
10 nautical miles