The calculated distance (air line) between Buchholz in der Nordheide and Kleinzschocher is approximately 173 miles respectively 279 kilometers.
By car or train, the actual journey to Kleinzschocher is certainly longer, as only the direct route (as the crow flies) between Buchholz in der Nordheide and Kleinzschocher has been calculated here.
Air line (approximately)
279 kilometers
150 nautical miles