The calculated distance (air line) between Menen and Mons-en-Barœul is approximately 11 miles respectively 18 kilometers.
By car or train, the actual journey to Mons-en-Barœul is certainly longer, as only the direct route (as the crow flies) between Menen and Mons-en-Barœul has been calculated here.
Air line (approximately)
18 kilometers
10 nautical miles