The calculated distance (air line) between Miasteczko Śląskie and Częstochowa is approximately 22 miles respectively 35 kilometers.
By car or train, the actual journey to Częstochowa is certainly longer, as only the direct route (as the crow flies) between Miasteczko Śląskie and Częstochowa has been calculated here.
Air line (approximately)
35 kilometers
19 nautical miles