The calculated distance (air line) between Duisburg and Heeswijk-Dinther is approximately 57 miles respectively 92 kilometers.
By car or train, the actual journey to Heeswijk-Dinther is certainly longer, as only the direct route (as the crow flies) between Duisburg and Heeswijk-Dinther has been calculated here.
Air line (approximately)
92 kilometers
50 nautical miles