The calculated distance (air line) between Neustadt (Hessen) and Gelsenkirchen is approximately 99 miles respectively 159 kilometers.
By car or train, the actual journey to Gelsenkirchen is certainly longer, as only the direct route (as the crow flies) between Neustadt (Hessen) and Gelsenkirchen has been calculated here.
Air line (approximately)
159 kilometers
86 nautical miles