The calculated distance (air line) between Nowa Sól and Ruda Śląska is approximately 173 miles respectively 279 kilometers.
By car or train, the actual journey to Ruda Śląska is certainly longer, as only the direct route (as the crow flies) between Nowa Sól and Ruda Śląska has been calculated here.
Air line (approximately)
279 kilometers
150 nautical miles