The calculated distance (air line) between Falkenhagener Feld and Reinickendorf is approximately 7 miles respectively 11 kilometers.
By car or train, the actual journey to Reinickendorf is certainly longer, as only the direct route (as the crow flies) between Falkenhagener Feld and Reinickendorf has been calculated here.
Air line (approximately)
11 kilometers
6 nautical miles