The calculated distance (air line) between Ginsheim-Gustavsburg and Erzhausen is approximately 13 miles respectively 22 kilometers.
By car or train, the actual journey to Erzhausen is certainly longer, as only the direct route (as the crow flies) between Ginsheim-Gustavsburg and Erzhausen has been calculated here.
Air line (approximately)
22 kilometers
12 nautical miles