The calculated distance (air line) between Ballenstedt and Bochum-Hordel is approximately 175 miles respectively 281 kilometers.
By car or train, the actual journey to Bochum-Hordel is certainly longer, as only the direct route (as the crow flies) between Ballenstedt and Bochum-Hordel has been calculated here.
Air line (approximately)
281 kilometers
152 nautical miles