The calculated distance (air line) between Schlüsselfeld and Großzschocher is approximately 130 miles respectively 210 kilometers.
By car or train, the actual journey to Großzschocher is certainly longer, as only the direct route (as the crow flies) between Schlüsselfeld and Großzschocher has been calculated here.
Air line (approximately)
210 kilometers
113 nautical miles