The calculated distance (air line) between Nörten-Hardenberg and Wiesbaden is approximately 130 miles respectively 209 kilometers.
By car or train, the actual journey to Wiesbaden is certainly longer, as only the direct route (as the crow flies) between Nörten-Hardenberg and Wiesbaden has been calculated here.
Air line (approximately)
209 kilometers
113 nautical miles