The calculated distance (air line) between Saint-Denis and Le Pré-Saint-Gervais is approximately 4 miles respectively 7 kilometers.
By car or train, the actual journey to Le Pré-Saint-Gervais is certainly longer, as only the direct route (as the crow flies) between Saint-Denis and Le Pré-Saint-Gervais has been calculated here.
Air line (approximately)
7 kilometers
4 nautical miles