The calculated distance (air line) between Duisburg and Aarle-Rixtel is approximately 49 miles respectively 79 kilometers.
By car or train, the actual journey to Aarle-Rixtel is certainly longer, as only the direct route (as the crow flies) between Duisburg and Aarle-Rixtel has been calculated here.
Air line (approximately)
79 kilometers
42 nautical miles