The calculated distance (air line) between Genlis and Paris 15 Vaugirard is approximately 174 miles respectively 281 kilometers.
By car or train, the actual journey to Paris 15 Vaugirard is certainly longer, as only the direct route (as the crow flies) between Genlis and Paris 15 Vaugirard has been calculated here.
Air line (approximately)
281 kilometers
152 nautical miles