The calculated distance (air line) between Freiberg am Neckar and Wiesbaden is approximately 90 miles respectively 145 kilometers.
By car or train, the actual journey to Wiesbaden is certainly longer, as only the direct route (as the crow flies) between Freiberg am Neckar and Wiesbaden has been calculated here.
Air line (approximately)
145 kilometers
78 nautical miles