The calculated distance (air line) between Bochum and Bad Homburg vor der Höhe is approximately 106 miles respectively 171 kilometers.
By car or train, the actual journey to Bad Homburg vor der Höhe is certainly longer, as only the direct route (as the crow flies) between Bochum and Bad Homburg vor der Höhe has been calculated here.
Air line (approximately)
171 kilometers
92 nautical miles