The calculated distance (air line) between Duisburg and Neustadt an der Weinstraße is approximately 156 miles respectively 251 kilometers.
By car or train, the actual journey to Neustadt an der Weinstraße is certainly longer, as only the direct route (as the crow flies) between Duisburg and Neustadt an der Weinstraße has been calculated here.
Air line (approximately)
251 kilometers
136 nautical miles