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