The calculated distance (air line) between Kowloon Tong and So Kwun Wat is approximately 11 miles respectively 18 kilometers.
By car or train, the actual journey to So Kwun Wat is certainly longer, as only the direct route (as the crow flies) between Kowloon Tong and So Kwun Wat has been calculated here.
Air line (approximately)
18 kilometers
10 nautical miles