The calculated distance (air line) between Lwówek Śląski and Sosnowiec is approximately 164 miles respectively 264 kilometers.
By car or train, the actual journey to Sosnowiec is certainly longer, as only the direct route (as the crow flies) between Lwówek Śląski and Sosnowiec has been calculated here.
Air line (approximately)
264 kilometers
143 nautical miles