The calculated distance (air line) between Höhr-Grenzhausen and Wiesbaden is approximately 35 miles respectively 57 kilometers.
By car or train, the actual journey to Wiesbaden is certainly longer, as only the direct route (as the crow flies) between Höhr-Grenzhausen and Wiesbaden has been calculated here.
Air line (approximately)
57 kilometers
31 nautical miles