The calculated distance (air line) between Saint-Étienne and Saint-Genest-Lerpt is approximately 3 miles respectively 4 kilometers.
By car or train, the actual journey to Saint-Genest-Lerpt is certainly longer, as only the direct route (as the crow flies) between Saint-Étienne and Saint-Genest-Lerpt has been calculated here.
Air line (approximately)
4 kilometers
2 nautical miles