The calculated distance (air line) between Montmagny and Deuil-la-Barre is approximately 1 miles respectively 1 kilometers.
By car or train, the actual journey to Deuil-la-Barre is certainly longer, as only the direct route (as the crow flies) between Montmagny and Deuil-la-Barre has been calculated here.
Air line (approximately)
1 kilometers
1 nautical miles