The calculated distance (air line) between Ransbach-Baumbach and Düsseldorf is approximately 67 miles respectively 107 kilometers.
By car or train, the actual journey to Düsseldorf is certainly longer, as only the direct route (as the crow flies) between Ransbach-Baumbach and Düsseldorf has been calculated here.
Air line (approximately)
107 kilometers
58 nautical miles