The calculated distance (air line) between Redange-sur-Attert and Walferdange is approximately 13 miles respectively 21 kilometers.
By car or train, the actual journey to Walferdange is certainly longer, as only the direct route (as the crow flies) between Redange-sur-Attert and Walferdange has been calculated here.
Air line (approximately)
21 kilometers
11 nautical miles