The calculated distance (air line) between Thái Nguyên and Nghĩa Lộ is approximately 86 miles respectively 138 kilometers.
By car or train, the actual journey to Nghĩa Lộ is certainly longer, as only the direct route (as the crow flies) between Thái Nguyên and Nghĩa Lộ has been calculated here.
Air line (approximately)
138 kilometers
74 nautical miles