The calculated distance (air line) between Hưng Yên and Thái Nguyên is approximately 67 miles respectively 107 kilometers.
By car or train, the actual journey to Thái Nguyên is certainly longer, as only the direct route (as the crow flies) between Hưng Yên and Thái Nguyên has been calculated here.
Air line (approximately)
107 kilometers
58 nautical miles