The calculated distance (air line) between Wanzleben and Osternienburger Land is approximately 30 miles respectively 49 kilometers.
By car or train, the actual journey to Osternienburger Land is certainly longer, as only the direct route (as the crow flies) between Wanzleben and Osternienburger Land has been calculated here.
Air line (approximately)
49 kilometers
26 nautical miles