The calculated distance (air line) between Nachrodt-Wiblingwerde and Bonn is approximately 46 miles respectively 74 kilometers.
By car or train, the actual journey to Bonn is certainly longer, as only the direct route (as the crow flies) between Nachrodt-Wiblingwerde and Bonn has been calculated here.
Air line (approximately)
74 kilometers
40 nautical miles