The calculated distance (air line) between Bochum-Hordel and Sleeuwijk is approximately 98 miles respectively 157 kilometers.
By car or train, the actual journey to Sleeuwijk is certainly longer, as only the direct route (as the crow flies) between Bochum-Hordel and Sleeuwijk has been calculated here.
Air line (approximately)
157 kilometers
85 nautical miles