The calculated distance (air line) between Ars-sur-Moselle and Nilvange is approximately 18 miles respectively 29 kilometers.
By car or train, the actual journey to Nilvange is certainly longer, as only the direct route (as the crow flies) between Ars-sur-Moselle and Nilvange has been calculated here.
Air line (approximately)
29 kilometers
16 nautical miles