The calculated distance (air line) between Torrejón de la Calzada and Leganés is approximately 9 miles respectively 15 kilometers.
By car or train, the actual journey to Leganés is certainly longer, as only the direct route (as the crow flies) between Torrejón de la Calzada and Leganés has been calculated here.
Air line (approximately)
15 kilometers
8 nautical miles