The calculated distance (air line) between Choi Wun and Sha Tau Kok is approximately 15 miles respectively 24 kilometers.
By car or train, the actual journey to Sha Tau Kok is certainly longer, as only the direct route (as the crow flies) between Choi Wun and Sha Tau Kok has been calculated here.
Air line (approximately)
24 kilometers
13 nautical miles