The calculated distance (air line) between Bochum-Hordel and Terheijden is approximately 104 miles respectively 168 kilometers.
By car or train, the actual journey to Terheijden is certainly longer, as only the direct route (as the crow flies) between Bochum-Hordel and Terheijden has been calculated here.
Air line (approximately)
168 kilometers
91 nautical miles