The calculated distance (air line) between Liebenburg and Bochum-Hordel is approximately 144 miles respectively 231 kilometers.
By car or train, the actual journey to Bochum-Hordel is certainly longer, as only the direct route (as the crow flies) between Liebenburg and Bochum-Hordel has been calculated here.
Air line (approximately)
231 kilometers
125 nautical miles