The calculated distance (air line) between Bochum-Hordel and Hollogne-aux-Pierres is approximately 95 miles respectively 153 kilometers.
By car or train, the actual journey to Hollogne-aux-Pierres is certainly longer, as only the direct route (as the crow flies) between Bochum-Hordel and Hollogne-aux-Pierres has been calculated here.
Air line (approximately)
153 kilometers
82 nautical miles