The calculated distance (air line) between Leinefelde-Worbis and Gelsenkirchen is approximately 139 miles respectively 224 kilometers.
By car or train, the actual journey to Gelsenkirchen is certainly longer, as only the direct route (as the crow flies) between Leinefelde-Worbis and Gelsenkirchen has been calculated here.
Air line (approximately)
224 kilometers
121 nautical miles