The calculated distance (air line) between Korschenbroich and Niederkrüchten is approximately 13 miles respectively 21 kilometers.
By car or train, the actual journey to Niederkrüchten is certainly longer, as only the direct route (as the crow flies) between Korschenbroich and Niederkrüchten has been calculated here.
Air line (approximately)
21 kilometers
11 nautical miles