The calculated distance (air line) between Munich and Ludwigshafen am Rhein is approximately 170 miles respectively 274 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 Munich and Ludwigshafen am Rhein has been calculated here.
Air line (approximately)
274 kilometers
148 nautical miles