The calculated distance (air line) between Bochum-Hordel and Boxmeer is approximately 54 miles respectively 86 kilometers.
By car or train, the actual journey to Boxmeer is certainly longer, as only the direct route (as the crow flies) between Bochum-Hordel and Boxmeer has been calculated here.
Air line (approximately)
86 kilometers
47 nautical miles