The calculated distance (air line) between Yau Yat Tsuen and Ping Shan is approximately 13 miles respectively 21 kilometers.
By car or train, the actual journey to Ping Shan is certainly longer, as only the direct route (as the crow flies) between Yau Yat Tsuen and Ping Shan has been calculated here.
Air line (approximately)
21 kilometers
11 nautical miles