The calculated distance (air line) between Saint-Dié-des-Vosges and Strasbourg is approximately 42 miles respectively 68 kilometers.
By car or train, the actual journey to Strasbourg is certainly longer, as only the direct route (as the crow flies) between Saint-Dié-des-Vosges and Strasbourg has been calculated here.
Air line (approximately)
68 kilometers
36 nautical miles