The calculated distance (air line) between Chambray-lès-Tours and Saint-Quentin-en-Yvelines is approximately 116 miles respectively 187 kilometers.
By car or train, the actual journey to Saint-Quentin-en-Yvelines is certainly longer, as only the direct route (as the crow flies) between Chambray-lès-Tours and Saint-Quentin-en-Yvelines has been calculated here.
Air line (approximately)
187 kilometers
101 nautical miles