The calculated distance (air line) between Hückeswagen and Schalksmühle is approximately 10 miles respectively 16 kilometers.
By car or train, the actual journey to Schalksmühle is certainly longer, as only the direct route (as the crow flies) between Hückeswagen and Schalksmühle has been calculated here.
Air line (approximately)
16 kilometers
9 nautical miles