The calculated distance (air line) between Arévalo and Fuencarral-El Pardo is approximately 65 miles respectively 104 kilometers.
By car or train, the actual journey to Fuencarral-El Pardo is certainly longer, as only the direct route (as the crow flies) between Arévalo and Fuencarral-El Pardo has been calculated here.
Air line (approximately)
104 kilometers
56 nautical miles