The calculated distance (air line) between Waldfischbach-Burgalben and Duisburg is approximately 154 miles respectively 247 kilometers.
By car or train, the actual journey to Duisburg is certainly longer, as only the direct route (as the crow flies) between Waldfischbach-Burgalben and Duisburg has been calculated here.
Air line (approximately)
247 kilometers
133 nautical miles