The calculated distance (air line) between Boadilla del Monte and Navalcarnero is approximately 11 miles respectively 17 kilometers.
By car or train, the actual journey to Navalcarnero is certainly longer, as only the direct route (as the crow flies) between Boadilla del Monte and Navalcarnero has been calculated here.
Air line (approximately)
17 kilometers
9 nautical miles