The calculated distance (air line) between Brzeg Dolny and Ruda Śląska is approximately 117 miles respectively 189 kilometers.
By car or train, the actual journey to Ruda Śląska is certainly longer, as only the direct route (as the crow flies) between Brzeg Dolny and Ruda Śląska has been calculated here.
Air line (approximately)
189 kilometers
102 nautical miles