The calculated distance (air line) between Thái Nguyên and Thượng Cát is approximately 35 miles respectively 57 kilometers.
By car or train, the actual journey to Thượng Cát is certainly longer, as only the direct route (as the crow flies) between Thái Nguyên and Thượng Cát has been calculated here.
Air line (approximately)
57 kilometers
31 nautical miles