The calculated distance (air line) between Bochum and Ludwigshafen am Rhein is approximately 148 miles respectively 239 kilometers.
By car or train, the actual journey to Ludwigshafen am Rhein is certainly longer, as only the direct route (as the crow flies) between Bochum and Ludwigshafen am Rhein has been calculated here.
Air line (approximately)
239 kilometers
129 nautical miles