The calculated distance (air line) between Wentorf bei Hamburg and Poppenbüttel is approximately 13 miles respectively 21 kilometers.
By car or train, the actual journey to Poppenbüttel is certainly longer, as only the direct route (as the crow flies) between Wentorf bei Hamburg and Poppenbüttel has been calculated here.
Air line (approximately)
21 kilometers
11 nautical miles