The calculated distance (air line) between Saint-Martin-le-Vinoux and Saint-Étienne is approximately 66 miles respectively 107 kilometers.
By car or train, the actual journey to Saint-Étienne is certainly longer, as only the direct route (as the crow flies) between Saint-Martin-le-Vinoux and Saint-Étienne has been calculated here.
Air line (approximately)
107 kilometers
58 nautical miles