The calculated distance (air line) between Wiesbaden and Nieder-Ingelheim is approximately 11 miles respectively 17 kilometers.
By car or train, the actual journey to Nieder-Ingelheim is certainly longer, as only the direct route (as the crow flies) between Wiesbaden and Nieder-Ingelheim has been calculated here.
Air line (approximately)
17 kilometers
9 nautical miles