The calculated distance (air line) between Bochum-Hordel and Opwijk is approximately 135 miles respectively 217 kilometers.
By car or train, the actual journey to Opwijk is certainly longer, as only the direct route (as the crow flies) between Bochum-Hordel and Opwijk has been calculated here.
Air line (approximately)
217 kilometers
117 nautical miles