The calculated distance (air line) between Bochum-Hordel and Tongerlo is approximately 101 miles respectively 163 kilometers.
By car or train, the actual journey to Tongerlo is certainly longer, as only the direct route (as the crow flies) between Bochum-Hordel and Tongerlo has been calculated here.
Air line (approximately)
163 kilometers
88 nautical miles