The calculated distance (air line) between Nghĩa Đàn and Hai Bà Trưng is approximately 121 miles respectively 195 kilometers.
By car or train, the actual journey to Hai Bà Trưng is certainly longer, as only the direct route (as the crow flies) between Nghĩa Đàn and Hai Bà Trưng has been calculated here.
Air line (approximately)
195 kilometers
105 nautical miles