The calculated distance (air line) between Kamp-Lintfort and Kevelaer is approximately 14 miles respectively 22 kilometers.
By car or train, the actual journey to Kevelaer is certainly longer, as only the direct route (as the crow flies) between Kamp-Lintfort and Kevelaer has been calculated here.
Air line (approximately)
22 kilometers
12 nautical miles