The calculated distance (air line) between Bochum-Hordel and Gummersbach is approximately 37 miles respectively 59 kilometers.
By car or train, the actual journey to Gummersbach is certainly longer, as only the direct route (as the crow flies) between Bochum-Hordel and Gummersbach has been calculated here.
Air line (approximately)
59 kilometers
32 nautical miles