The calculated distance (air line) between Bochum-Hordel and Nieuwerkerken is approximately 143 miles respectively 230 kilometers.
By car or train, the actual journey to Nieuwerkerken is certainly longer, as only the direct route (as the crow flies) between Bochum-Hordel and Nieuwerkerken has been calculated here.
Air line (approximately)
230 kilometers
124 nautical miles