The calculated distance (air line) between Redange-sur-Attert and Pétange is approximately 14 miles respectively 23 kilometers.
By car or train, the actual journey to Pétange is certainly longer, as only the direct route (as the crow flies) between Redange-sur-Attert and Pétange has been calculated here.
Air line (approximately)
23 kilometers
12 nautical miles