The calculated distance (air line) between Ninh Bình and Hai Bà Trưng is approximately 53 miles respectively 85 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 Ninh Bình and Hai Bà Trưng has been calculated here.
Air line (approximately)
85 kilometers
46 nautical miles