The calculated distance (air line) between Falkenhagener Feld and Tiergarten is approximately 9 miles respectively 14 kilometers.
By car or train, the actual journey to Tiergarten is certainly longer, as only the direct route (as the crow flies) between Falkenhagener Feld and Tiergarten has been calculated here.
Air line (approximately)
14 kilometers
8 nautical miles