The calculated distance (air line) between Nowa Dęba and Ruda Śląska is approximately 128 miles respectively 206 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 Dęba and Ruda Śląska has been calculated here.
Air line (approximately)
206 kilometers
111 nautical miles