The calculated distance (air line) between Praga Południe and Ruda Śląska is approximately 168 miles respectively 270 kilometers.
By car or train, the actual journey to Ruda Śląska is certainly longer, as only the direct route (as the crow flies) between Praga Południe and Ruda Śląska has been calculated here.
Air line (approximately)
270 kilometers
146 nautical miles