The calculated distance (air line) between Redange-sur-Attert and Belvaux is approximately 18 miles respectively 28 kilometers.
By car or train, the actual journey to Belvaux is certainly longer, as only the direct route (as the crow flies) between Redange-sur-Attert and Belvaux has been calculated here.
Air line (approximately)
28 kilometers
15 nautical miles