The calculated distance (air line) between Spiesen-Elversberg and Düsseldorf is approximately 133 miles respectively 213 kilometers.
By car or train, the actual journey to Düsseldorf is certainly longer, as only the direct route (as the crow flies) between Spiesen-Elversberg and Düsseldorf has been calculated here.
Air line (approximately)
213 kilometers
115 nautical miles