The calculated distance (air line) between Wanzleben and Königslutter am Elm is approximately 30 miles respectively 48 kilometers.
By car or train, the actual journey to Königslutter am Elm is certainly longer, as only the direct route (as the crow flies) between Wanzleben and Königslutter am Elm has been calculated here.
Air line (approximately)
48 kilometers
26 nautical miles