The calculated distance (air line) between Miasteczko Śląskie and Bielany is approximately 151 miles respectively 242 kilometers.
By car or train, the actual journey to Bielany is certainly longer, as only the direct route (as the crow flies) between Miasteczko Śląskie and Bielany has been calculated here.
Air line (approximately)
242 kilometers
131 nautical miles