The calculated distance (air line) between Oschersleben and Königslutter am Elm is approximately 23 miles respectively 37 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 Oschersleben and Königslutter am Elm has been calculated here.
Air line (approximately)
37 kilometers
20 nautical miles