The calculated distance (air line) between Tuyên Quang and Xam Nua is approximately 123 miles respectively 198 kilometers.
By car or train, the actual journey to Xam Nua is certainly longer, as only the direct route (as the crow flies) between Tuyên Quang and Xam Nua has been calculated here.
Air line (approximately)
198 kilometers
107 nautical miles