The calculated distance (air line) between Bochum-Hordel and Osnabrück is approximately 65 miles respectively 105 kilometers.
By car or train, the actual journey to Osnabrück is certainly longer, as only the direct route (as the crow flies) between Bochum-Hordel and Osnabrück has been calculated here.
Air line (approximately)
105 kilometers
56 nautical miles