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