The calculated distance (air line) between Ruda Śląska and Praga Północ is approximately 167 miles respectively 269 kilometers.
By car or train, the actual journey to Praga Północ is certainly longer, as only the direct route (as the crow flies) between Ruda Śląska and Praga Północ has been calculated here.
Air line (approximately)
269 kilometers
145 nautical miles