The calculated distance (air line) between Falkenhagener Feld and Wandsbek is approximately 147 miles respectively 236 kilometers.
By car or train, the actual journey to Wandsbek is certainly longer, as only the direct route (as the crow flies) between Falkenhagener Feld and Wandsbek has been calculated here.
Air line (approximately)
236 kilometers
127 nautical miles