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