The calculated distance (air line) between Rudnya and Krasnyy Yar is approximately 10 miles respectively 16 kilometers.
By car or train, the actual journey to Krasnyy Yar is certainly longer, as only the direct route (as the crow flies) between Rudnya and Krasnyy Yar has been calculated here.
Air line (approximately)
16 kilometers
9 nautical miles