The calculated distance (air line) between Bad Soden-Salmünster and Wiesbaden is approximately 51 miles respectively 82 kilometers.
By car or train, the actual journey to Wiesbaden is certainly longer, as only the direct route (as the crow flies) between Bad Soden-Salmünster and Wiesbaden has been calculated here.
Air line (approximately)
82 kilometers
44 nautical miles