The calculated distance (air line) between Miasteczko Śląskie and Sosnowiec is approximately 17 miles respectively 27 kilometers.
By car or train, the actual journey to Sosnowiec is certainly longer, as only the direct route (as the crow flies) between Miasteczko Śląskie and Sosnowiec has been calculated here.
Air line (approximately)
27 kilometers
14 nautical miles