The calculated distance (air line) between Poppenbüttel and Hummelsbüttel is approximately 2 miles respectively 3 kilometers.
By car or train, the actual journey to Hummelsbüttel is certainly longer, as only the direct route (as the crow flies) between Poppenbüttel and Hummelsbüttel has been calculated here.
Air line (approximately)
3 kilometers
2 nautical miles