The calculated distance (air line) between Gasa and Wangdue Phodrang is approximately 31 miles respectively 49 kilometers.
By car or train, the actual journey to Wangdue Phodrang is certainly longer, as only the direct route (as the crow flies) between Gasa and Wangdue Phodrang has been calculated here.
Air line (approximately)
49 kilometers
27 nautical miles