The calculated distance (air line) between Kowloon Tong and Hong Lok Yuen is approximately 9 miles respectively 15 kilometers.
By car or train, the actual journey to Hong Lok Yuen is certainly longer, as only the direct route (as the crow flies) between Kowloon Tong and Hong Lok Yuen has been calculated here.
Air line (approximately)
15 kilometers
8 nautical miles