The calculated distance (air line) between Marly and Pont-à-Mousson is approximately 12 miles respectively 19 kilometers.
By car or train, the actual journey to Pont-à-Mousson is certainly longer, as only the direct route (as the crow flies) between Marly and Pont-à-Mousson has been calculated here.
Air line (approximately)
19 kilometers
10 nautical miles