The calculated distance (air line) between Ruda Śląska and Żoliborz is approximately 167 miles respectively 268 kilometers.
By car or train, the actual journey to Żoliborz is certainly longer, as only the direct route (as the crow flies) between Ruda Śląska and Żoliborz has been calculated here.
Air line (approximately)
268 kilometers
145 nautical miles