The calculated distance (air line) between Chemnitz and Annaberg-Buchholz is approximately 18 miles respectively 29 kilometers.
By car or train, the actual journey to Annaberg-Buchholz is certainly longer, as only the direct route (as the crow flies) between Chemnitz and Annaberg-Buchholz has been calculated here.
Air line (approximately)
29 kilometers
16 nautical miles