The calculated distance (air line) between Nachrodt-Wiblingwerde and Kierspe is approximately 13 miles respectively 20 kilometers.
By car or train, the actual journey to Kierspe is certainly longer, as only the direct route (as the crow flies) between Nachrodt-Wiblingwerde and Kierspe has been calculated here.
Air line (approximately)
20 kilometers
11 nautical miles