The calculated distance (air line) between Thị Trấn Đồng Đăng and Nam Định is approximately 110 miles respectively 177 kilometers.
By car or train, the actual journey to Nam Định is certainly longer, as only the direct route (as the crow flies) between Thị Trấn Đồng Đăng and Nam Định has been calculated here.
Air line (approximately)
177 kilometers
96 nautical miles