The calculated distance (air line) between Bochum-Hordel and Soumagne is approximately 87 miles respectively 140 kilometers.
By car or train, the actual journey to Soumagne is certainly longer, as only the direct route (as the crow flies) between Bochum-Hordel and Soumagne has been calculated here.
Air line (approximately)
140 kilometers
76 nautical miles