The calculated distance (air line) between Düsseldorf-Pempelfort and Grevenbroich is approximately 13 miles respectively 22 kilometers.
By car or train, the actual journey to Grevenbroich is certainly longer, as only the direct route (as the crow flies) between Düsseldorf-Pempelfort and Grevenbroich has been calculated here.
Air line (approximately)
22 kilometers
12 nautical miles