The calculated distance (air line) between Tin Shui Wai and Ma On Shan is approximately 16 miles respectively 25 kilometers.
By car or train, the actual journey to Ma On Shan is certainly longer, as only the direct route (as the crow flies) between Tin Shui Wai and Ma On Shan has been calculated here.
Air line (approximately)
25 kilometers
14 nautical miles