The calculated distance (air line) between Postbauer-Heng and Wiesbaden is approximately 149 miles respectively 240 kilometers.
By car or train, the actual journey to Wiesbaden is certainly longer, as only the direct route (as the crow flies) between Postbauer-Heng and Wiesbaden has been calculated here.
Air line (approximately)
240 kilometers
129 nautical miles