The calculated distance (air line) between Dannstadt-Schauernheim and Gelsenkirchen is approximately 152 miles respectively 245 kilometers.
By car or train, the actual journey to Gelsenkirchen is certainly longer, as only the direct route (as the crow flies) between Dannstadt-Schauernheim and Gelsenkirchen has been calculated here.
Air line (approximately)
245 kilometers
132 nautical miles