The calculated distance (air line) between Boguszów-Gorce and Częstochowa is approximately 128 miles respectively 205 kilometers.
By car or train, the actual journey to Częstochowa is certainly longer, as only the direct route (as the crow flies) between Boguszów-Gorce and Częstochowa has been calculated here.
Air line (approximately)
205 kilometers
111 nautical miles