The calculated distance (air line) between Belm and Bochum-Hordel is approximately 69 miles respectively 110 kilometers.
By car or train, the actual journey to Bochum-Hordel is certainly longer, as only the direct route (as the crow flies) between Belm and Bochum-Hordel has been calculated here.
Air line (approximately)
110 kilometers
60 nautical miles