The calculated distance (air line) between Hessisch Lichtenau and Gelsenkirchen is approximately 115 miles respectively 185 kilometers.
By car or train, the actual journey to Gelsenkirchen is certainly longer, as only the direct route (as the crow flies) between Hessisch Lichtenau and Gelsenkirchen has been calculated here.
Air line (approximately)
185 kilometers
100 nautical miles