The calculated distance (air line) between Thái Nguyên and Phủ Lý is approximately 73 miles respectively 117 kilometers.
By car or train, the actual journey to Phủ Lý is certainly longer, as only the direct route (as the crow flies) between Thái Nguyên and Phủ Lý has been calculated here.
Air line (approximately)
117 kilometers
63 nautical miles