The calculated distance (air line) between Bochum-Hordel and Sint-Kruis is approximately 171 miles respectively 274 kilometers.
By car or train, the actual journey to Sint-Kruis is certainly longer, as only the direct route (as the crow flies) between Bochum-Hordel and Sint-Kruis has been calculated here.
Air line (approximately)
274 kilometers
148 nautical miles