The calculated distance (air line) between Bochum-Hordel and Harderwijk is approximately 88 miles respectively 142 kilometers.
By car or train, the actual journey to Harderwijk is certainly longer, as only the direct route (as the crow flies) between Bochum-Hordel and Harderwijk has been calculated here.
Air line (approximately)
142 kilometers
76 nautical miles